Year	%
1992	14.37
1993	10.47
1996	3.67
1997	3.33
1998	2.96
1999	2.3
2000	2.1
2001	7.72
2002	5.85
2003	6.36
2004	6.77
2005	9.72
2006	10.1
2007	2.09
2008	1.92
2009	1.83
2010	15.28
2011	1.93
2012	2.38
2013	1.53
2014	1.39
2015	1.36
2016	1.42
2017	1.39
2019	1.24
2020	1.39
2021	1.25