Year	%
1994	20.99
1999	12.86
2000	16.52
2001	15
2002	12.23
2004	10.44
2005	7.55
2006	7.02
2007	8.15
2008	8.19
2009	10.23
2010	8.71
2011	7.95
2012	13.08
2013	10.62
2014	11.53
2015	13.15
2016	13.35
2018	12.66
2019	13.35
2020	12.02
2021	12.18