Mapped: A Decade of Population Growth and Decline in U.S. Counties
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Demographics

Mapped: A Decade of Population Growth and Decline in U.S. Counties

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map showing changes in population in the us from 2010 to 2020

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A Decade of Population Growth and Decline in U.S. Counties

There are a number of factors that determine how much a region’s population changes.

If an area sees a high number of migrants, along with a strong birth rate and low death rate, then its population is bound to increase over time. On the flip side, if more people are leaving the area than coming in, and the region’s birth rate is low, then its population will likely decline.

Which areas in the United States are seeing the most growth, and which places are seeing their populations dwindle?

This map, using data from the U.S. Census Bureau, shows a decade of population movement across U.S. counties, painting a detailed picture of U.S. population growth between 2010 and 2020.

Counties With The Biggest Population Growth from 2010-2020

To calculate population estimates for each county, the U.S. Census Bureau does the following calculations:

A county’s base population → plus births → minus deaths → plus migration = new population estimate

 
From 2010 to 2020, Maricopa County in Arizona saw the highest increase in its population estimate. Over a decade, the county gained 753,898 residents. Below are the counties that saw the biggest increases in population:

RankCountyPoint of ReferenceStatePop. Growth (2010–2020)
#1Maricopa CountyPhoenix, ScottsdaleArizona+753,898
#2Harris CountyHoustonTexas+630,711
#3Clark CountyLas VegasNevada+363,323
#4King CountySeattleWashington+335,884
#5Tarrant CountyFort Worth, ArlingtonTexas+305,180
#6Bexar CountySan AntonioTexas+303,982
#7Riverside CountyRiverside, Palm SpringsCalifornia+287,626
#8Collin CountyPlanoTexas+284,967
#9Travis CountyAustinTexas+270,111
#10Hillsborough CountyTampaFlorida+264,446

Phoenix and surrounding areas grew faster than any other major city in the country. The region’s sunny climate and amenities are popular with retirees, but another draw is housing affordability. Families from more expensive markets—California in particular—are moving to the city in droves. This is a trend that spilled over into the pandemic era as more people moved into remote and hybrid work situations.

Texas counties saw a lot of growth as well, with five of the top 10 gainers located in the state of Texas. A big draw for Texas is its relatively affordable housing market. In 2021, average home prices in the state stood at $172,500$53,310 below the national average.

Counties With The Biggest Population Drops from 2010-2020

On the opposite end of the spectrum, here’s a look at the top 10 counties that saw the biggest declines in their populations over the decade:

RankCountyPoint of ReferenceStatePop. Growth (2010–2020)
#1Cook CountyChicagoIllinois-90,693
#2Wayne CountyDetroitMichigan-74,224
#3Cuyahoga CountyClevelandOhio-50,220
#4Genesee CountyFlintMichigan-20,165
#5Suffolk CountyLong IslandNew York-20,064
#6Caddo ParishShreveportLouisiana-18,173
#7Westmoreland CountyMurrysvillePennsylvania-17,942
#8Hinds CountyJacksonMississippi-17,751
#9Kanawha CountyCharlestonWest Virginia-16,672
#10Cambria CountyJohnstownPennsylvania-14,786

The largest drops happened in counties along the Great Lakes, including Cook County (which includes the city of Chicago) and Wayne County (which includes the city of Detroit).

For many of these counties, particularly those in America’s “Rust Belt”, population drops over this period were a continuation of decades-long trends. Wayne County is an extreme example of this trend. From 1970 to 2020, the area lost one-third of its population.

U.S. Population Growth in Percentage Terms (2010-2020)

While the map above is great at showing where the greatest number of Americans migrated, it downplays big changes in counties with smaller populations.

For example, McKenzie County in North Dakota, with a 2020 population of just 15,242, was the fastest-growing U.S. county over the past decade. The county’s 138% increase was driven primarily by the Bakken oil boom in the area. High-growth counties in Texas also grew as new sources of energy were extracted in rural areas.

The nation’s counties are evenly divided between population increase and decline, and clear patterns emerge.

population changes in u.s. counties (%)

Pandemic Population Changes

More recent population changes reflect longer-term trends. During the COVID-19 pandemic, many of the counties that saw the strongest population increases were located in high-growth states like Florida and Texas.

Below are the 20 counties that grew the most from 2020 to 2021.

RankCountyPoint of ReferenceStatePop. Growth (2020–2021)
#1Maricopa CountyPhoenixArizona+58,246
#2Collin CountyPlanoTexas+36,313
#3Riverside CountyRiverside, Palm SpringsCalifornia+35,631
#4Fort Bend CountySugar LandTexas+29,895
#5Williamson CountyGeorgetownTexas+27,760
#6Denton CountyDentonTexas+27,747
#7Polk CountyLakelandFlorida+24,287
#8Montgomery CountyThe WoodlandsTexas+23,948
#9Lee CountyFort MyersFlorida+23,297
#10Utah CountyProvoUtah+21,843
#11Pinal CountySan Tan ValleyArizona+19,974
#12Clark CountyLas VegasNevada+19,090
#13Pasco CountyNew Port RicheyFlorida+18,322
#14Wake CountyRaleighNorth Carolina+16,651
#15St. Johns CountySt. AugustineFlorida+15,550
#16Hillsborough CountyTampaFlorida+14,814
#17Bexar CountySan AntonioTexas+14,184
#18Ada CountyBoiseIdaho+13,947
#19Osceola CountyKissimmeeFlorida+12,427
#20St. Lucie CountyFort PierceFlorida+12,304

Many of these counties are located next to large cities, reflecting a shift to the suburbs and larger living spaces. However, as COVID-19 restrictions ease, and the pandemic housing boom tapers off due to rising interest rates, it remains to be seen whether the suburban shift will continue, or if people begin to migrate back to city centers.

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Demographics

Where Will the World’s Next 1,000 Babies Be Born?

This graphic paints a picture of the world’s population, showing which countries are most likely to welcome the next 1,000 babies.

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Where Will the World’s Next 1,000 Babies Be Born?

View a higher resolution version of this map.

Every four minutes, approximately 1,000 babies are born across the globe. But in which countries are these babies the most statistically likely to come from?

Using data from the CIA World Factbook, this graphic by Pratap Vardhan (Stats of India) paints a picture of the world’s demographics, showing which countries are most likely to welcome the next 1,000 babies based on population and birth rates as of 2022 estimates.

The Next 1,000 Babies, By Country

Considering India has a population of nearly 1.4 billion, it’s fairly unsurprising that it ranks first on the list. Of every 1,000 babies born, the South Asian country accounts for roughly 172 of them.

PlaceRegionBirths Per 1,000 Global Babies
🇮🇳​ IndiaAsia171.62
🇨🇳 ChinaAsia102.84
🇳🇬 NigeriaAfrica56.50
🇵🇰 PakistanAsia47.23
🇨🇩 Congo, Democratic Republic of theAfrica31.90
🇮🇩 IndonesiaAsia31.20
🇺🇸 United StatesAmericas30.42
🇪🇹 EthiopiaAfrica25.44
🇧🇷 BrazilAmericas22.27
🇧🇩 BangladeshAsia21.52
🇵🇭 PhilippinesAsia18.75
🇪🇬 EgyptAfrica16.98
🇹🇿 TanzaniaAfrica15.61
🇺🇬 UgandaAfrica13.89
🇲🇽 MexicoAmericas12.85
🇻🇳 VietnamAsia11.96
🇸🇩 SudanAfrica11.79
🇰🇪 KenyaAfrica10.82
🇦🇴 AngolaAfrica10.68
🇦🇫 AfghanistanAsia9.98
🇷🇺 RussiaEurope9.85
🇮🇷 IranAsia9.73
🇲🇿 MozambiqueAfrica8.72
🇹🇷 TurkeyAsia8.71
🇳🇪 NigerAfrica8.46
🇿🇦 South AfricaAfrica7.84
🇨🇲 CameroonAfrica7.65
🇮🇶 IraqAsia7.34
🇬🇭 GhanaAfrica6.94
🇲🇲 MyanmarAsia6.90
🇯🇵 JapanAsia6.34
🇲🇱 MaliAfrica6.25
🇩🇿 AlgeriaAfrica6.01
🇨🇮 Cote d'IvoireAfrica5.97
🇲🇬 MadagascarAfrica5.93
🇫🇷 FranceEurope5.85
🇩🇪 GermanyEurope5.62
🇾🇪 YemenAsia5.61
🇨🇴 ColombiaAmericas5.48
🇧🇫 Burkina FasoAfrica5.41
🇬🇧 United KingdomEurope5.37
🇹🇩 ChadAfrica5.34
🇦🇷 ArgentinaAmericas5.29
🇹🇭 ThailandAsia5.19
🇿🇲 ZambiaAfrica5.03
🇲🇦 MoroccoAfrica4.70
🇲🇼 MalawiAfrica4.27
🇧🇯 BeninAfrica4.16
🇸🇳 SenegalAfrica4.15
🇵🇪 PeruAmericas4.08
🇳🇵 NepalAsia3.95
🇻🇪 VenezuelaAmericas3.78
🇸🇦 Saudi ArabiaAsia3.69
🇿🇼 ZimbabweAfrica3.67
🇲🇾 MalaysiaAsia3.62
🇸🇾 SyriaAsia3.60
🇺🇿 UzbekistanAsia3.55
🇬🇳 GuineaAfrica3.47
🇸🇴 SomaliaAfrica3.45
🇧🇮 BurundiAfrica3.28
🇸🇸 South SudanAfrica3.19
🇮🇹 ItalyEurope3.12
🇬🇹 GuatemalaAmericas2.90
🇺🇦 UkraineEurope2.88
🇨🇦 CanadaAmericas2.85
🇰🇵 Korea, NorthAsia2.71
🇰🇷 Korea, SouthAsia2.63
🇷🇼 RwandaAfrica2.56
🇪🇸 SpainEurope2.47
🇵🇱 PolandEurope2.38
🇰🇭 CambodiaAsia2.37
🇦🇺 AustraliaOceania2.36
🇱🇰 Sri LankaAsia2.35
🇰🇿 KazakhstanAsia2.19
🇪🇨 EcuadorAmericas2.09
🇸🇱 Sierra LeoneAfrica2.06
🇵🇬 Papua New GuineaOceania2.04
🇹🇬 TogoAfrica1.99
🇯🇴 JordanAsia1.82
🇭🇹 HaitiAmericas1.76
🇨🇱 ChileAmericas1.73
🇧🇴 BoliviaAmericas1.65
🇱🇷 LiberiaAfrica1.44
🇩🇴 Dominican RepublicAmericas1.42
🇳🇱 NetherlandsEurope1.40
🇹🇯 TajikistanAsia1.39
🇨🇫 Central African RepublicAfrica1.31
🇨🇬 Congo, Republic of theAfrica1.30
🇹🇼 TaiwanAsia1.28
🇹🇳 TunisiaAfrica1.28
🇭🇳 HondurasAmericas1.24
🇪🇷 EritreaAfrica1.23
🇷🇴 RomaniaEurope1.19
🇱🇦 LaosAsia1.19
🇮🇱 IsraelAsia1.14
🇱🇾 LibyaAfrica1.13
🇦🇿 AzerbaijanAsia1.03
🇧🇪 BelgiumEurope0.95
🇵🇾 ParaguayAmericas0.88
🇰🇬 KyrgyzstanAsia0.87
🇸🇻 El SalvadorAmericas0.86
🇲🇷 MauritaniaAfrica0.86
🇸🇪 SwedenEurope0.83
🇨🇺 CubaAmericas0.82
🇦🇪 United Arab EmiratesAsia0.79
🇳🇮 NicaraguaAmericas0.76
🇹🇲 TurkmenistanAsia0.72
🇨🇿 CzechiaEurope0.68
🇨🇭 SwitzerlandEurope0.65
🇧🇾 BelarusEurope0.63
🇦🇹 AustriaEurope0.62
🇭🇺 HungaryEurope0.62
🇴🇲 OmanAsia0.61
🇵🇹 PortugalEurope0.60
🇬🇷 GreeceEurope0.59
🇵🇦 PanamaAmericas0.57
🇨🇷 Costa RicaAmericas0.55
🇬🇼 Guinea-BissauAfrica0.54
🇵🇸 West BankAsia0.54
🇬🇲 GambiaAfrica0.51
🇱🇧 LebanonAsia0.51
🇳🇦 NamibiaAfrica0.50
🇳🇴 NorwayEurope0.49
🇩🇰 DenmarkEurope0.49
🇮🇪 IrelandEurope0.48
🇳🇿 New ZealandOceania0.47
🇬🇦 GabonAfrica0.45
🇷🇸 SerbiaEurope0.44
🇭🇰 Hong KongAsia0.43
🇫🇮 FinlandEurope0.43
🇧🇬 BulgariaEurope0.41
🇵🇸 Gaza StripAsia0.41
🇰🇼 KuwaitAsia0.40
🇬🇪 GeorgiaAsia0.40
🇸🇬 SingaporeAsia0.39
🇲🇳 MongoliaAsia0.38
🇱🇸 LesothoAfrica0.37
🇬🇶 Equatorial GuineaAfrica0.37
🇸🇰 SlovakiaEurope0.36
🇧🇼 BotswanaAfrica0.36
🇯🇲 JamaicaAmericas0.33
🇹🇱 Timor-LesteAsia0.33
🇺🇾 UruguayAmericas0.32
🇦🇱 AlbaniaEurope0.29
🇭🇷 CroatiaEurope0.27
🇲🇩 MoldovaEurope0.25
🇦🇲 ArmeniaAsia0.24
🇧🇦 Bosnia and HerzegovinaEurope0.24
🇽🇰 KosovoEurope0.21
🇸🇿 EswatiniAfrica0.19
🇱🇹 LithuaniaEurope0.18
🇵🇷 Puerto RicoAmericas0.18
🇶🇦 QatarAsia0.17
🇲🇰 North MacedoniaEurope0.16
🇩🇯 DjiboutiAfrica0.16
🇰🇲 ComorosAfrica0.14
🇧🇭 BahrainAsia0.14
🇸🇮 SloveniaEurope0.13
🇱🇻 LatviaEurope0.12
🇸🇧 Solomon IslandsOceania0.12
🇫🇯 FijiOceania0.11
🇹🇹 Trinidad and TobagoAmericas0.11
🇧🇹 BhutanAsia0.10
🇨🇾 CyprusAsia0.10
🇬🇾 GuyanaAmericas0.10
🇲🇺 MauritiusAfrica0.09
🇨🇻 Cabo VerdeAfrica0.08
🇪🇪 EstoniaEurope0.08
🇸🇷 SurinameAmericas0.07
🇧🇿 BelizeAmericas0.06
🇧🇳 BruneiAsia0.06
🇱🇺 LuxembourgEurope0.06
🇲🇪 MontenegroEurope0.05
🇻🇺 VanuatuOceania0.05
🇸🇹 Sao Tome and PrincipeAfrica0.04
🇲🇻 MaldivesAsia0.04
🇲🇴 MacauAsia0.04
🇧🇸 Bahamas, TheAmericas0.04
🇮🇸 IcelandEurope0.03
🇲🇹 MaltaEurope0.03
🇳🇨 New CaledoniaOceania0.03
🇵🇫 French PolynesiaOceania0.03
🇼🇸 SamoaOceania0.03
🇧🇧 BarbadosAmericas0.02
🇬🇺 GuamOceania0.02
🇰🇮 KiribatiOceania0.02
🇹🇴 TongaOceania0.02
🇨🇼 CuracaoAmericas0.01
🇱🇨 Saint LuciaAmericas0.01
🇫🇲 Micronesia, Federated States ofOceania0.01
🇲🇭 Marshall IslandsOceania0.01
🇬🇩 GrenadaAmericas0.01
🇦🇬 Antigua and BarbudaAmericas0.01
🇦🇼 ArubaAmericas0.01
🇯🇪 JerseyEurope0.01
🇻🇨 Saint Vincent and the GrenadinesAmericas0.01
🇻🇮 Virgin IslandsAmericas0.01
🇸🇨 SeychellesAfrica0.01
🇩🇲 DominicaAmericas0.01
🇮🇲 Isle of ManEurope0.01
🇧🇲 BermudaAmericas0.01
🇲🇵 Northern Mariana IslandsOceania0.01
🇬🇱 GreenlandAmericas0.01
🇹🇨 Turks and Caicos IslandsAmericas0.01
🇫🇴 Faroe IslandsEurope0.01
🇦🇸 American SamoaOceania0.01
🇰🇾 Cayman IslandsAmericas0.01
🇰🇳 Saint Kitts and NevisAmericas0.00
🇬🇬 GuernseyEurope0.00
🇦🇩 AndorraEurope0.00
🇸🇽 Sint MaartenAmericas0.00
🇲🇫 Saint MartinAmericas0.00
🇻🇬 British Virgin IslandsAmericas0.00
🇬🇮 GibraltarEurope0.00
🇱🇮 LiechtensteinEurope0.00
🇸🇲 San MarinoEurope0.00
🇹🇻 TuvaluOceania0.00
🇵🇼 PalauOceania0.00
🇦🇮 AnguillaAmericas0.00
🇲🇨 MonacoEurope0.00
🇳🇷 NauruOceania0.00
🇼🇫 Wallis and FutunaOceania0.00
🇨🇰 Cook IslandsOceania0.00
🇸🇭 Saint Helena, Ascension, and Tristan da CunhaAfrica0.00
🇧🇱 Saint BarthelemyAmericas0.00
🇲🇸 MontserratAmericas0.00
🇫🇰 Falkland Islands (Islas Malvinas)Americas0.00
🇵🇲 Saint Pierre and MiquelonAmericas0.00

It’s worth noting that, while India ranks number one on the list, the country’s birth rate (which is its total number of births in a year per 1,000 individuals) is actually slightly below the global average, at 16.8 compared to 17.7 respectively.

China, which comes second on the list, is similar to India, with a high population but relatively low birth rate as well. On the other hand, Nigeria, which ranks third on the list, has a birth rate that’s nearly double the global average, at 34.2.

Why is Nigeria’s birth rate so high?

There are various intermingling factors at play, but one key reason is the fact that Nigeria’s economy still is developing, and ranks 131st globally in terms of GDP per capita. Further, access to education for women is still not as widespread as it could be, and research shows that this is strongly correlated with higher birth rates.

The World’s Population Growth Rate is Declining

While there are hundreds of thousands of babies born around the world each day, it’s worth mentioning that the world’s overall population growth rate has actually been declining since the 1960s.

This is happening for a number of reasons, including:

  • Increased wealth around the world, which research has correlated with fewer births
  • Various government policies discouraging large families
  • The global shift from rural to urban living

By 2100, global population growth is expected to drop to 0.1%, which means we’ll essentially reach net-zero population growth.

This would increase our global median age even further, which poses a number of economic risks if countries don’t properly prepare for this demographic shift.

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Economy

Ranked: The Most and Least Livable Cities in 2022

Which cities rank as the best places to live worldwide? This map reveals the world’s most and least livable cities.

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livable cities

Ranked: The Most and Least Livable Cities in 2022

Pandemic restrictions changed the livability of many urban centers worldwide as cultural sites were shuttered, restaurant dining was restricted, and local economies faced the consequences. But as cities worldwide return to the status quo, many of these urban centers have become desirable places to live yet again.

This map uses annual rankings from the Economist Intelligence Unit (EIU) to show the world’s most livable cities, measuring different categories including: stability, healthcare, culture and environment, education, and infrastructure.

A Quick Note on Methodology

The ranking attempts to assess which cities across the globe provide the best living conditions, by assigning a score on 30 quantitative and qualitative measures across the five categories with the following weightings:

  1. Healthcare (20%)
  2. Culture & Environment (25%)
  3. Stability (25%)
  4. Education (10%)
  5. Infrastructure (20%)

Of the 30 factors within these categories, the qualitative ones are assigned as acceptable, tolerable, uncomfortable, undesirable, or intolerable by a team of expert analysts. Quantitative measures are given a score based on a number of external data points. Everything is then weighted to provide a score between 1-100, with 100 being the ideal.

Ranked: The 10 Most Livable Cities

Of the 172 cities included in the rankings, many of the most livable cities can be found in Europe. However, three of the top 10 are located in Canada: Vancouver, Calgary, and Toronto.

Vienna has been ranked number one many times, most recently in 2019. According to the EIU, the Austrian capital only fell out of the top slot during the pandemic years because its famous museums and restaurants were shuttered.

RankCityCountryScore
#1Vienna🇦🇹 Austria99.1
#2Copenhagen🇩🇰 Denmark98.0
#3Zurich🇨🇭 Switzerland96.3
#3Calgary🇨🇦 Canada96.3
#5Vancouver🇨🇦 Canada96.1
#6Geneva🇨🇭 Switzerland95.9
#7Frankfurt🇩🇪 Germany95.7
#8Toronto🇨🇦 Canada95.4
#9Amsterdam🇳🇱 Netherlands95.3
#10Osaka🇯🇵 Japan95.1
#10Melbourne🇦🇺 Australia95.1

Only one Asian city, Osaka, makes the top 10 list, tying with Melbourne for 10th place. Notably, not a single U.S. city is found in the top ranks.

Editor’s note: Two cities tie for both the #3 and #10 ranks, meaning that the “top 10” list actually includes 12 cities.

Ranked: The 10 Least Livable Cities

Some of the least livable cities in the world are located across Africa and Central Asia.

RankCityCountryScore
#163Tehran🇮🇷 Iran44.0
#164Douala🇨🇲 Cameroon43.3
#165Harare🇿🇼 Zimbabwe40.9
#166Dhaka🇧🇩 Bangladesh39.2
#167Port Moresby🇵🇬 Papua New Guinea 38.8
#168Karachi🇵🇰 Pakistan37.5
#169Algiers🇩🇿 Algeria37.0
#170Tripoli🇱🇾 Libya34.2
#171Lagos🇳🇬 Nigeria32.2
#172Damascus🇸🇾 Syria30.7

Many of the least livable cities are within conflict zones, contributing to the low ratings. However, these regions are also home to some of the world’s fastest growing cities, presenting many opportunities for ambitious residents.

The Biggest Changes in Ranking

Let’s take a look at the cities that moved up the global rankings most dramatically compared to last year’s data.

Moving Up: The 10 Most Improved Cities

CityCountryOverall RankRank Change
Frankfurt🇩🇪 Germany#7+32
Hamburg🇩🇪 Germany#16+31
Dusseldorf🇩🇪 Germany#22+28
London🇬🇧 UK#33+27
Manchester🇬🇧 UK#28+26
Paris🇫🇷 France#19+23
Brussels🇧🇪 Belgium#24+22
Amsterdam🇳🇱 Netherlands#9+21
Athens🇬🇷 Greece#73+19
Los Angeles🇺🇸 US#37+18

Here’s a look at the cities that fell the most in the rankings since last year’s report.

Moving Down: The 10 Cities That Tumbled

CityCountryOverall RankRank Change
Wellington🇳🇿 New Zealand#50-46
Auckland🇳🇿 New Zealand#34-33
Adelaide🇦🇺 Australia#30-27
Perth🇦🇺 Australia#32-26
Houston🇺🇸 US#56-25
Reykjavik🇮🇸 Iceland#48-25
Madrid🇪🇸 Spain#43-24
Taipei🇹🇼 Taiwan#53-20
Barcelona🇪🇸 Spain#35-19
Brisbane🇦🇺 Australia#27-17

According to the report, a number of cities in New Zealand and Australia temporarily dropped in the ranking due to COVID-19 restrictions.

It’s also worth noting that some Eastern European cities moved down in the rankings because of their close proximity to the war in Ukraine. Finally, Kyiv was not included in this year’s report because of the conflict.

Urbanization and Livability

As of 2021, around 57% of the world’s population lives in urban centers and projections show that people worldwide will continue to move into cities.

While there are more amenities in urban areas, the pandemic revealed many issues with urbanization and the concentration of large populations. The stress on healthcare systems is felt most intensely in cities and restrictions on public outings are some of the first measures to be introduced in the face of a global health crisis.

Now with the cost of living rising, cities may face pressures on their quality of life, and governments may be forced to cut spending on public services. Regardless, people worldwide continue to see the benefits of city living—it’s projected that over two-thirds of the global population will live in cities by 2050.

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