Year	Percent
2000	12
2001	16
2002	22
2003	29
2004	36
2005	40
2006	46
2007	49
2008	47
2009	49
2010	52
2011	56
2012	61
2013	60
2014	64
2015	67
2016	70
2017	69
2018	76
2019	77
2020	62