An incredible new interactive map lets you see exactly how levels of migration have increased across the globe in the last three decades.

Experts used United Nations figures to depict the numbers of people moving into and out of nations across the globe from 1990 to the present day.

Some countries, including the United States the United Kingdom, have seen a doubling of the number of immigrants in the last 30 years.

The map also shows exactly where in the world immigrants to each country have come from and where emigrants from specific nations have ended up.

The findings were made by experts from the Pew Research Center in Washington DC, a nonpartisan think tank that informs the public about the issues, attitudes and trends shaping the world.

The figures in their interactive feature refer to the total number, or cumulative 'stocks' of migrants living around the world as of 1990, 2000, 2010 and 2017 rather than to the annual rate of migration, or current 'flows', in a given year.

Since migrants have both an origin and a destination, international migrants can be viewed from two directions – as an emigrant leaving an origin country or as an immigrant entering a destination country.

The map reveals that migration into the US has increased from 23,250,000 in 1990 to 49,780,000 in 2017. In the UK, this number was 3,650,000 in 1990, rising to 8,840,000 in 2017.

Emigration out of the US by residents also increased, from 1,740,000 in 1990 to 3,020,000 in 2017, while in the UK this rose from 2,680,000 to 4,920,000.

According to the United Nations Population Division, an international migrant is someone who has been living for one year or longer in a country other than the one in which he or she was born.

This means that many foreign workers and international students are counted as migrants.

Additionally, the UN considers refugees and, in some cases, their descendants - such as Palestinians born in refugee camps outside of the Palestinian territories - to be international migrants.



For the purposes of the interactive feature, Pew estimates of the number of unauthorised immigrants living in various countries also are included in the total counts.

On the other hand, tourists, foreign-aid workers, temporary workers employed abroad for less than a year and overseas military personnel typically are not counted as migrants.

The United Nations uses a taxonomy of nations and territories and classifies migrants born in territories as international migrants, even if their citizenship is different from their territory of birth.

THE TEN COUNTRIES WITH THE HIGHEST NUMBERS OF FOREIGN BORN RESIDENTS AS OF 2015

Country Number
United States 46,630,000
Germany 12,010,000
Russia 11,640,000
Saudi Arabia 10,190,000
United Kingdom 8,540,000
United Arab Emirates 8,100,000
Canada 7,840,000
France 7,780,000
Australia 6,760,000
Spain 5,850,000



The figures in their interactive feature refer to the total number, or cumulative 'stocks' of migrants living around the world as of 1990, 2000, 2010 and 2017 rather than to the annual rate of migration, or current 'flows', in a given year. This image depicts the number of foreign born people living in the UK as of 2017



Since migrants have both an origin and a destination, international migrants can be viewed from two directions – as an
emigrant leaving an origin country or as an immigrant entering a destination country. This image depicts the number of UK born people living in countries around the world as of 1990



According to the United Nations Population Division, an international migrant is someone who has been living for one year or longer in a country other than the one in which he or she was born. This image depicts the number of UK born people living in countries around the world as of 2017

For example, UN data counts people born in Puerto Rico, a US commonwealth, as international migrants even though they are US citizens by birth.

For this reason, some UN estimates of the foreign-born population shown here may differ from other estimates published by the US Census Bureau or Pew Research Center.

As another example, recent Pew Research Center estimates show that fewer new Mexican immigrants enter the US and a greater number return to Mexico.

The UN migration estimates do not reflect this recent Mexico-US trend and thus differ from previously published Pew Research Center estimates of the Mexican immigrant population in the US.
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