Year	Percent
2002	91.04361
2003	90.23406
2004	100.66116
2005	95.85297
2006	83.73737
2007	66.84435
2008	51.97018
2009	39.24528
2010	41.92741
2011	43.24693
2012	50.5992
2013	53.18878
2014	53.37278
2015	55.73419
2016	73.59098