Year	%
1994	11.96
1999	12.53
2000	13.23
2001	13.49
2002	7.67
2003	6.29
2004	6.64
2005	3.62
2006	3.42
2007	3.57
2008	2.77
2009	2.81
2011	4.72
2012	3.88
2013	3.88
2014	3.55
2015	4.58
2017	6.88
2020	4.88