The graph shows labor union membership. During what years did union membership peak? in 1945 and 1955 in 1960 and 1970 in 1930 and 1950 in 1965 and 1970

ITS A

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Labor union membership peaked in 1945 and 1955. The peak membership took place in 1950s. By the mid-1950s, unions in the United States had successfully organized one out of every three non-farm workers. This period characterized the peak of labor's power. However, the ranks of unionized workers declined in the following decades.