Year	Percent
1982	81.91489
1983	84.14322
1984	88.82142
1985	89.36851
1986	89.32014
1987	93.72105
1988	99.87428
1989	107.42369
1991	104.95868
1992	100.92093
1993	98.83268
1994	96.45346
1995	96.73279
1996	94.08552
1998	95.6953
1999	99.20015
2000	99.21173
2001	98.85118
2002	100.9498
2003	100.24691
2004	105.35198
2005	104.73882
2011	91.95087
2012	93.63082
2013	93.00205
2014	96.41006
2015	100.32107
2016	103.0401