Year	2000 = 100
1980	83.50515464
1981	74.25742574
1982	67.74193548
1983	62.88659794
1984	68.60465116
1985	82.8125
1986	82.66666667
1987	89.13043478
1988	101.1235955
1989	102.247191
1990	98.13084112
1991	91.81818182
1992	84.16666667
1993	85.47008547
1994	89.56521739
1995	89.3442623
1996	93.75
1997	98.18181818
1998	100
1999	100
2000	100
2001	99.58132162
2002	97.85857121
2003	95.01348315
2004	94.12313599
2005	89.79117024
2006	94.15169151
2007	97.65044189
2008	82.61976419
2009	83.49332692
2010	86.25049944
2011	83.61999653
2012	83.62023832
2013	82.92003156
2014	85.53959993
2015	89.92131301
2016	91.21504608
2017	86.90326151
2018	83.76259738