Year	Percent
2000	29
2001	25
2002	34
2003	41
2004	37
2005	35
2006	36
2007	47
2008	58
2009	61
2010	67
2011	72
2012	72
2013	76
2014	80
2015	87
2016	87
2017	77
2018	69
2019	73
2020	66