Union Membership in America

BLS reports:

In 2013, the union membership rate--the percent of wage and salary workers who were
members of unions--was 11.3 percent, the same as in 2012, the U.S. Bureau of Labor
Statistics reported today. The number of wage and salary workers belonging to
unions, at 14.5 million, was little different from 2012. In 1983, the first year
for which comparable union data are available, the union membership rate was 20.1
percent, and there were 17.7 million union workers.