Year	Percent
1993	11.69
1994	8.22
1998	9.61
1999	10.45
2001	11.43
2002	16.7
2003	13.52
2004	11.99
2005	10.58
2006	11.24
2007	10.57
2008	9.8
2009	12.02
2010	11.03
2011	11.76
2012	10.1
2013	9.66
2014	11.21
2015	11.05
2016	11.51
2017	10.82
2018	14.55
2019	15.28
2020	17.09