FIGURE 3—

Monthly Proportions of Facebook Posts Pertaining to Each Page Category, Calculated Using a 12-Month Moving Average for Readability: October 2010–October 2019

Note. Solid lines reflect the proportions of posts in pages that are consistent with that topic category (e.g., proportions civil liberties topics in civil liberties groups). Dashed lines reflect the proportions of posts in pages that are not consistent with that topic category (e.g., proportions of civil liberties topics in non–of civil liberties groups). Pages pertaining to morality and alternative medicine did not contain any posts until October 2010 and September 2012, respectively. (See Appendix A, Figure G, available as a supplement to the online version of this article at http://www.ajph.org, for figure without averaging.)