Year	Percent
1995	97.86023
1997	71.40184
1999	92.05554
2000	92.66116
2001	96.7926
2002	97.70942
2003	95.57392
2004	92.06659
2005	101.08515
2006	103.98463
2007	91.78095
2008	93.62658
2009	96.49509
2010	99.65681
2011	101.13681
2012	96.37389
2014	97.31345
2015	98.61299
2016	92.88306
2017	92.36924