Year	Percent
1995	50.04522
1996	51.27747
1997	51.97918
1998	59.99793
1999	55.69759
2000	55.06725
2001	52.47908
2002	54.41454
2003	56.22043
2004	53.19419
2005	46.106
2006	41.11244
2007	24.82658
2008	24.84385
2009	31.3596
2010	34.34932
2011	34.56777
2012	47.15114
2013	48.92864
2014	50.1105
2015	55.04839
2016	54.44994