Food-stamp use rose 2.8% in the U.S. in April from a year earlier, with more than 15% of the U.S. population receiving benefits. (See an interactive map with data on use since 1990.)

One of the federal government’s biggest social welfare programs, which expanded when the economy convulsed, isn’t shrinking back alongside the recovery.

Food stamp rolls increased on a year-over-year basis, but were 0.4% lower from the prior month, the U.S. Department of Agriculture reported. Though annual growth continues, the pace has slowed since the depths of the recession.