Year	%
1994	11.93
1999	12.43
2000	12.89
2001	14.16
2002	8.12
2003	6.81
2004	6.93
2005	5.63
2006	5.61
2007	5.59
2008	5.48
2009	5.4
2011	4.48
2012	5.12
2013	5.12
2014	4.91
2015	4.37
2017	9.52
2020	6.91