Year	%
1993	25.34
1997	15.39
2001	17.64
2002	14.89
2003	14.51
2004	18.13
2005	14.52
2006	17.28
2007	16.07
2008	11.58
2009	11.03
2010	11.19
2011	10.46
2012	11.12
2013	10.3
2015	10.64
2016	14.72
2018	10.8
2020	11.65
2021	11.66