"The final irony would be if African immigrants did, too."
African and Indian immigrants are the most common carriers, she said.
One reason African immigrants have flooded the industry is that few need to learn the business.
African immigrants have been living in Sweden since the 17th century.
The vendors on the street are overwhelmingly black, including a growing number of African immigrants.
African immigrants often bring in large pieces of 24-karat gold, he said.
A significant number of African immigrants have made the Houston area home.
From the 11.8 million people, around 5 million were African immigrants.
African immigrants arrived in 1997 but most of them came during the 2000s.
Some 48.9 percent of all African immigrants hold a college diploma.