Year	Percent
2005	8.29
2006	8.28
2007	7.97
2008	7.85
2009	9.62
2010	10.76
2011	10.22
2012	10.21
2013	8.98
2014	9.24
2015	9.86
2016	11.19
2017	11.01
2018	11.13
2019	9.81
2020	8.92