Year	%
1994	84.80567
1995	89.73924
1996	90.08657
1997	88.94703
1998	87.86933
1999	88.82439
2000	89.86017
2001	91.01461
2002	92.05127
2003	93.15209
2004	94.36002
2005	95.47897
2006	96.49531
2007	97.5801
2008	97.6787
2009	97.66806
2010	97.6436
2011	97.34724
2012	96.54314
2013	95.59966
2014	97.29986
2015	97.80956
2016	98.09257
2017	98.12994