Year	%
1994	11.52
1999	16.29
2001	16.63
2002	15.23
2003	12.28
2004	12.22
2005	11.93
2006	10.76
2007	9.17
2008	5.61
2009	5.64
2010	5.11
2012	3.93
2013	3.35
2014	3.14
2015	2.7
2016	2.56
2017	2.47
2018	2.29
2019	1.42
2020	1.05
2021	0.88