Year	Percent
2000	33
2001	34
2002	40
2003	43
2004	46
2005	48
2006	48
2007	51
2008	57
2009	62
2010	66
2011	69
2012	66
2013	62
2014	59
2015	70
2016	68
2017	67
2018	69
2019	71
2020	71