Year	%
1994	80.75232
1995	86.96159
1996	87.25254
1997	86.10408
1998	84.90795
1999	86.18037
2000	87.50635
2001	88.9659
2002	90.3146
2003	91.64302
2004	91.48195
2005	94.14355
2006	96.59018
2007	95.87851
2008	96.32582
2009	95.48939
2010	94.90677
2013	93.65347
2014	96.37307
2015	96.83381
2016	97.07862
2017	97.11456