There have been endless of changes in the past fifteen decades and international migration is one of the major ones. Numbers from the United Nations (U.N.) have revealed that the migrants around the world have swelled since the beginning of the new millennium.

According to a report from ABC News, the U.N. study recognized that the number of migrants worldwide increased to 41 percent in the past 15 years. There is now a total of 244 million, people who have migrated to another country, including 20 million refugees.

Most of the international migrants come from the regions of Asia and Europe, with 104 million (43 percent) and 62 million (25 percent) respectively. Latin America and the Caribbean followed with 37 million (15 percent) of migrants while the North America only recorded 4 million (2 percent).

In terms of countries, India is at the top of the list with 16 million migrants with the following countries also prominently featured: Mexico with 12 million, Russia with 11 million, China with 10 million, Bangladesh with seven million, and Pakistan and Ukraine with six million each.

The international migrants have mostly headed to Europe and Asia who host 76 million and 75 million migrants respectively, which amounts to two-thirds of the total number. The U.S. are far and away the single country hosting the most number of migrants with 47 million people settling in since 2000. Germany and Russia have 12 million each, Saudi Arabia with 10 million, Britain with nine million and the United Arab Emirates with eight million.

The study also sought to identify the identities of the migrants and found out that 48 percent are women. Most of them are of working age with the median age logged in as 39 in the last year.

Despite the soaring numbers, U.N. revealed that migrants are only 3.3 percent of the world's total population in 2015. Still, the percentage has increased enough for it to be a concern for certain regions whose population growth can be partially attributed to the influx of migrants.

In the U.S., a host of a huge number of migrants (legal and illegal), the administration is turning to the U.N. for help in screening potential refugees and setting up processing centers, according to a report from New York Times.

There are plans to conduct a series of meetings in 2016 to discuss the subject of migration, the report from ABC revealed. In March, there will be a conference in Geneva where the Syrian refugee crisis can be addressed as well.