(click to print)
The graph below charts general trends in union membership in private, non-agricultural employment.
What general trends in union membership does the graph reveal?
Which year(s) experienced the lowest rate of union membership in the private sector? the highest?
What accounts for the steep upward slope of the graph beginning in the mid-1930s?
(click to enlarge)
Source: http://www.publicpurpose.com/lm-unn2000.htm.
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