Year	Percent
1982	103.79676
1983	95.10316
1984	93.39195
1985	97.71853
1986	92.001
1987	91.90464
1988	99.44256
1989	102.86646
1991	101.12263
1992	100.86644
1993	100.44788
1994	92.79923
1995	91.29477
1996	90.12745
1998	93.11793
1999	101.5393
2000	98.38171
2001	94.64197
2002	100.14297
2003	99.96927
2004	98.98855
2005	98.7845
2011	87.19395
2012	92.82314
2013	95.82162
2014	96.79036
2015	97.21841
2016	96.28371