Year	Percent
2000	14.62
2001	17.61
2002	16.42
2003	12.68
2004	11.02
2005	9.04
2006	8.03
2007	6.07
2008	4.91
2009	5.99
2010	9.36
2011	10.5
2012	11.25
2013	11.8
2014	10.52
2015	8.46
2016	7.12
2017	5.85
2018	4.98
2019	4.11
2020	4.95