CHARLOTTESVILLE, Va. (AP) — Virginia’s foreign-born population grew from one in 100 in 1970 to one in nine in 2012, University of Virginia researchers said Tuesday.

More than 40 percent of Virginia’s foreign-born population is in the 25 to 44 age group, compared to less than 30 percent of the native-born population, according to a census brief released by the Weldon Cooper for Public Service’s Demographics Research Group.