Year	%
1993	10
1994	10
1995	10
1996	10
1997	10
1998	10
1999	9.99
2000	9.58
2001	9.04
2002	10.3
2003	10
2004	4.95
2005	5.19
2006	3.41
2007	4.38
2008	3.27
2009	2.59
2010	5.48
2011	2.06
2012	2.3
2013	3.91
2014	3.92
2015	3.57
2016	3.59
2017	6.01
2018	3.51
2019	3.51
2020	2.76
2021	2.95