A new report b Bloomberg ranks Nigerians working in the United States as the eight most hardworking foreigners in the country.

Ghana with 75.2 percent topped the list of the hardest and most skilled immigrant groups in the US while Nigerians scored 71.0 percent.

Bulgaria and Kenya were ranked second and third with 74.2 percent and 73.4 percent respectively. Other African countries in the report’s top 10 are Ethiopia (4th), Egypt (5th), and Liberia (9th).

This makes Africans in general the most productive immigrants in the US ahead of those from Mexico and Central America, who constitute more than 70 percent of foreign nationals in the country.

Mexico is by far the most common country of origin, but the population of Mexican immigrants in the U.S. (both documented and undocumented) actually fell 6 percent from 2007 to 2015, according to the Pew Research Centre.

The numbers of Salvadorans, Hondurans and Guatemalans in the U.S. continued to grow.

“If we want more high-skilled, hardworking, English-speaking, ready-to-integrate immigrants, it looks like the most obvious place to find them is in African countries where English is widely spoken,” Bloomberg journalist Justin Fox, who came up with the report, said.

The report, developed from the 2016 US Census Bureau American Community Survey, ranked Nigeria 8th among the Most-Educated Immigrant Groups in the U.S. Nigeria sandwiched between Australia (7th) and Malaysia (9th).

The report put the number of Nigerian legal immigrants in the U.S. at 262,603. According to the report, Kenya, Nigeria, Nepal and Ghana have the highest number of citizens pursuing higher education in the US after Saudi Arabia.

Immigrants from Kenya, Nigeria and Ghana are near the top in both employment-population ratio and higher-education enrollment, it said.