Year	Percent
2000	2.8
2001	5.2
2002	12
2003	17
2004	22
2005	32
2006	39
2007	50
2008	52
2009	55
2010	53
2011	52
2012	52
2013	55
2014	58
2015	60
2016	65
2017	65
2018	64
2019	58
2020	48