Year	%
1993	92.38538
1994	89.01155
1995	93.60907
1996	88.56843
1999	95.91415
2000	84.77524
2001	86.2874
2002	91.90522
2003	89.84721
2004	89.58674
2005	86.24286
2006	83.6114
2007	89.82206
2008	88.7737
2009	89.85519
2010	93.59818
2011	94.49386
2012	95.72232
2014	91.28169
2017	92.98367