Year	%
1992	11.24
1993	9.02
1996	4.83
1997	4.15
1998	3.57
1999	3
2000	2.37
2001	3.61
2002	3.85
2003	4.21
2004	4.32
2005	4.14
2006	4.52
2007	2.62
2008	1.82
2009	1.68
2010	5.53
2011	2.11
2012	2.32
2013	1.38
2014	1.31
2015	1.32
2016	1.27
2017	1.35
2019	0.91
2020	0.85
2021	0.86