Year	%
1994	82.07377
1995	87.79034
1996	88.02737
1997	86.89598
1998	85.71961
1999	86.85671
2000	88.07113
2001	89.42853
2002	90.72792
2003	92.00044
2004	91.8795
2005	94.35936
2006	96.62403
2007	95.99507
2009	95.62877
2010	95.07778
2013	93.90487
2014	96.41331
2015	96.82801
2016	97.04565
2017	97.05728