Yet the percentage of people qualifying for federal disability benefits .
People are unable to work rose from 0.7 percent of the size of the labor force in 1960 to 5.3 percent in 2010 .
Yet the percentage of people qualifying for federal disability benefits because they are unable to work rose from 0.7 percent of the size of the labor force in 1960 to 5.3 percent in 2010 .