Year	Percent
1992	96.38794
1993	96.41581
1994	98.47004
1995	98.49665
1996	96.61317
1997	96.29746
1998	98.17832
1999	97.04216
2000	95.55487
2001	100.20889
2002	97.4665
2003	97.90714
2004	97.18219
2005	92.60823
2006	92.42933
2007	95.21143
2008	97.57409
2009	99.67372
2010	99.62818
2011	95.70147
2012	93.56375
2013	94.20732
2014	96.60038
2015	95.61704