Year	%
1994	98.39455
1995	95.9159
1996	98.0281
1997	94.88263
1998	92.28774
1999	93.19072
2000	97.76628
2001	98.7281
2002	97.46523
2003	97.45061
2004	98.31461
2005	97.67157
2006	98.19913
2009	99.86283
2010	94.45022
2011	97.64681
2014	99.2273
2015	98.41721
2016	96.79687
2017	96.19274