Year	%
1995	27.57
1996	19.27
1997	20.21
1998	15.88
1999	19.88
2000	10.8
2001	10.44
2002	9.88
2004	9.3
2005	6.63
2006	2.08
2007	2.21
2008	2.22
2009	0.38
2010	0.35
2011	0.37
2012	0.34
2013	0.32
2014	0.37
2015	0.45
2016	0.57
2017	1.08
2018	0.99
2019	2.09
2020	1.81
2021	2.61