Year	%
1995	53.61995
1997	0
1998	47.59731
1999	55.78107
2000	55.68724
2001	55.74379
2002	52.7817
2003	52.65113
2004	27.61975
2005	21.67499
2006	26.17504
2007	21.92608
2008	18.10436
2009	18.44026
2010	17.81903
2011	17.38908
2012	16.53617
2013	17.65771
2014	10.48145
2015	10.6356
2016	10.0835
2017	11.26129
2018	11.33019
2019	8.782659