A new opinion study shows the world is growing less accepting of migrants. The latest version of the Migrant Acceptance Index was released Wednesday by Gallup, an American company known for its public opinion research. North Macedonia, Hungary, Serbia and Croatia were at the top of Gallup’s list of least-accepting countries. Several South American countries also became clearly less welcoming of migrants, the poll found. The poll was made up of more than 140,000 interviews in 145 countries and areas. It included questions about people's positions on migrants living in their country, marrying into their families, and becoming their neighbors. Scores for the latest Migrant Acceptance Index go from zero to nine, with a higher number meaning greater acceptance. Gallup reports a decrease from 5.34 to 5.21 between 2016 and 2019.