Year	2000 = 100
1980	83.33333333
1981	82.60869565
1982	92.1875
1983	100
1984	106.779661
1985	96.55172414
1986	112.0689655
1987	94.36619718
1988	94.36619718
1989	70.51282051
1990	80.95238095
1991	72.09302326
1992	71.11111111
1993	71.59090909
1994	77.65957447
1995	79.61165049
1996	81.55339806
1997	84.69387755
1998	93.75
1999	88.88888889
2000	100
2001	90.47004051
2002	86.7095399
2003	85.46750952
2004	80.61740579
2005	73.88220553
2006	72.60983929
2007	72.60819579
2008	69.36263931
2009	73.12340465
2010	76.2107123
2011	77.91730912
2012	78.91120638
2013	76.90768758
2014	83.52061265
2015	87.02422219
2016	84.46663996
2017	75.80975586
2018	72.8251481