Changing Views: Are people born gay?

	Born gay	Due to upbringing/environment
1977	13	56
1982	17	52
1989	19	48
1996	31	40
1999	34	44
2001	40	39
2002	40	36
2003	38	44
2004	37	41
2005	38	44
2006	42	37
2007	42	35
2008	41	38
2009	35	42
2010	36	37
2011	40	42
2012 May	40	35
2012 Nov	45	36
2013	47	33

Sources: gallup.com