Year	%
1993	25.98
1997	13.62
2001	13.66
2002	11.7
2003	13.28
2004	13.53
2005	13.18
2006	13.35
2007	13.08
2008	13.01
2009	12.72
2010	12.44
2011	12.46
2012	12.4
2013	11.76
2015	11.69
2016	13.59
2018	11.9
2020	12.76
2021	12.59