Year	Percent
2000	40
2001	42
2002	43
2003	48
2004	54
2005	54
2006	52
2007	52
2008	53
2009	55
2010	54
2011	50
2012	48
2013	48
2014	48
2015	48
2016	51
2017	57
2018	63
2019	64
2020	70