Year	Percent
1983	84.84636
1984	82.35767
1985	93.57557
1986	126.55586
1987	99.0032
1988	102.56092
1989	69.05752
1990	113.50983
1991	114.69404
1992	111.87413
1993	103.01097
1994	98.37521
1995	95.96592
1996	94.24318
1997	93.25973
1998	99.89477
1999	103.11404
2000	102.01249
2001	102.50934
2002	98.37497
2003	99.29949
2004	97.57348
2005	97.96868
2006	96.40995
2007	98.88336
2008	97.24857
2009	95.16384
2010	99.50754
2011	99.04211
2012	97.28588
2013	99.70257
2014	98.05899
2015	102.50282
2016	102.39156