Year	Percent
2000	20
2001	25
2002	29
2003	62
2004	33
2005	41
2006	42
2007	53
2008	57
2009	69
2010	72
2011	78
2012	77
2013	69
2014	77
2015	81
2016	81
2017	79
2018	75
2019	74
2020	52