Year	%
1994	9.14
1999	13.24
2000	17.07
2001	10.71
2002	7.22
2003	10.67
2004	10.46
2005	2.7
2006	2.82
2007	2.85
2008	2.18
2009	2.06
2011	3.79
2012	2.69
2013	2.69
2014	2.46
2015	3.99
2017	9.46
2020	4.48