An estimated 258 million people have left their birth countries and are now living in other nations, according to a UN report on international migration. The figure has increased by 49 percent since 2000. The biennial report said the proportion of the world’s people who are international migrants has increased modestly from 2.8 percent in 2000 to 3.4 percent this year. However, the report from the UN Department of Economic and Social Affairs said the percentage living in high-income countries rose from 9.6 percent in 2000 to 14 percent in 2017, according to AP.