Less than 8 percent of private sector workers belonged to a union in 2004, and, overall, only 12.5 percent of American workers carry a union card - down from about one-third of workers in labor's heydays in the 1950s.
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Less than 8 percent of private sector workers belonged to a union in 2004, and, overall, only 12.5 percent of American workers carry a union card - down from about one-third of workers in labor's heydays in the 1950s.