Year	Percent
2005	10.3
2006	9.53
2007	10.48
2008	7.44
2009	9.95
2010	11.9
2011	14.87
2012	17.23
2013	15.29
2014	12.37
2015	11.5
2016	8.98
2017	8.07
2018	8.72
2019	6.55
2020	5.25