In 2007, 12.1% of U.S. wage & salary workers were members of these, down from 20% in 1983
Source: U.S. Department of Labor, Bureau of Labor Statistics, "
Employee... [DOC] [TLE] For most workers, real wages have barely budged for decades | Pew ... [PAR] Oct 9, 2014 ... For most U.S. workers, inflation-adjusted wages have been flat or falling for ...