Year	Percent
1995	92.18365
1996	95.87226
1997	96.03597
1999	101.42565
2000	97.09121
2001	96.33055
2002	95.26489
2003	93.41412
2004	91.72312
2005	93.03457
2006	93.65943
2007	92.79353
2008	92.06573
2009	92.47335
2013	90.39888
2014	90.18055
2015	91.42026