Year	Percent
1984	88.98694
1985	91.07639
1986	96.27624
1987	95.85686
1988	108.45446
1989	94.07013
1990	94.87231
1991	96.92414
1992	102.61174
1993	95.96932
1994	95.91162
1995	93.9521
2004	98.17171
2005	102.61733
2006	98.91202
2007	97.33723
2008	98.64723
2009	98.70106
2010	98.95156
2011	101.2484
2012	99.85809
2014	91.56445
2015	92.45695