Year	%
1992	4.5
1996	10.7
1997	10.7
1998	10.7
1999	5.6
2000	7.12
2001	10.35
2002	10.29
2003	12.03
2004	4.99
2005	4.87
2006	4.35
2007	4.17
2008	1.8
2009	1.76
2010	3.21
2011	1.28
2014	0.63
2016	0.65
2017	0.04
2018	0.03
2019	0.03
2020	0.03
2021	0.03