Year	%
1995	49.66955
1997	0
1998	50.69431
1999	51.71548
2000	51.87089
2001	51.67962
2002	50.44638
2003	47.90197
2004	28.37451
2005	21.24689
2006	27.12192
2007	22.33744
2008	17.1921
2009	18.26344
2010	12.2753
2011	11.60524
2012	11.64379
2013	12.60695
2014	11.89772
2015	11.4835
2016	11.9372
2017	11.68463
2018	10.35596
2019	10.53693