Year	%
1994	10.72
1999	11.5
2000	12.48
2001	11.12
2002	6.53
2003	7.28
2004	7.01
2005	4.35
2006	4.41
2007	4.06
2008	3.56
2009	3.44
2011	4.16
2012	3.96
2013	3.96
2014	3.84
2015	4.45
2017	5.02
2020	5.19