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. Author manuscript; available in PMC: 2013 Jun 3.
Published in final edited form as: Soc Sci Q. 2011 Jul 26;92(3):631–655. doi: 10.1111/j.1540-6237.2011.00785.x

FIGURE 1.

FIGURE 1

Time Trends in Associational Membership

Notes: x-axis: time (1974–2004). (A) Trend in the proportion of respondents that belong at least to one group. (B) Trend in the average membership per capita. (C) Trend in the number of memberships. (D) Trend in group membership by group. LOWESS curve fitted.