Year	%
1995	24.53
1998	19.68
1999	25.08
2000	25.09
2001	25.1
2002	40.91
2003	23.41
2004	17.53
2005	14.23
2006	16.92
2007	14.63
2008	12.5
2009	12.19
2010	10.99
2011	10.33
2012	9.8
2013	9.27
2014	7.85
2015	7.52
2016	8.08
2017	10.14
2018	9.57
2019	14.43