Year	2000 = 100
1980	28.85008414
1981	29.92494599
1982	28.69811288
1983	27.29019523
1984	29.64177094
1985	30.91440893
1986	29.93057456
1987	32.36483195
1988	37.07419419
1989	39.88401274
1990	45.76528107
1991	39.68681887
1992	45.76334018
1993	44.22965322
1994	52.09858141
1995	67.3620856
1996	73.64142935
1997	80.41453412
1998	83.41902339
1999	91.18120292
2000	100
2001	97.80505368
2002	109.6929715
2003	140.8261181
2004	193.6525312
2005	277.294174
2006	346.2732106
2007	445.1804926
2008	623.0850748
2009	499.1997733
2010	679.7614265
2011	901.4671146
2012	950.4393192
2013	903.2819775
2014	898.4541243
2015	762.5082245
2016	701.0625178
2017	870.3372675
2018	991.1411237