Rise of the Nonbelievers

	Christian	Atheist/Agnostic	Unaffiliated
2007	78	3.7	15.3
2008	77	4	16
2009	77	4.4	16.8
2010	76	4.5	17.4
2011	75	5.2	18.6
2012	73	5.7	19.6

Percentage of American adults

Sources: pewresearch.org