Year	Percent
1995	35.93139
1997	12.84798
1998	26.74575
1999	35.69541
2001	46.0545
2002	55.53111
2003	62.80397
2004	74.27929
2005	85.38048
2006	89.07709
2007	90.82054
2008	86.0302
2009	83.40615
2010	85.35714
2011	87.37793
2012	92.81065
2013	90.57901
2014	96.66342
2015	96.23326
2016	94.26364