Among the U.S.-born, black women had the strongest birth-rate decline from 1990 to 2010, according to a recent report from Pew Social and Demographic Trends. The birth rate—the number of births per 1,000 women aged 15 to 44—declined 29 percent for blacks, 25 percent for Asians, 21 percent for Hispanics, but only 5 percent for whites.

In 1990, the black birth rate was 26.1 points higher than the white rate. In 2010, it was only 4 points higher. If this trend continues, the black birth rate will soon equal the white rate.