Year	%
1995	22.36
1998	17.59
1999	19.98
2000	19.98
2001	20.1
2002	28.22
2003	17.66
2004	12.13
2005	11.56
2006	11.56
2007	9.83
2008	9.8
2009	9.16
2010	13.23
2011	12.34
2012	12.79
2013	12.6
2014	13.15
2015	13.07
2016	13.87
2017	12.8
2018	12.98
2019	16.43