Year	2000 = 100
1980	30.23208673
1981	38.61579854
1982	39.60422052
1983	30.52214248
1984	39.58674031
1985	41.5240432
1986	38.57941652
1987	49.17269085
1988	53.66479053
1989	58.27861991
1990	56.01303645
1991	59.47696244
1992	64.20083294
1993	65.58714046
1994	74.98907486
1995	93.17168207
1996	95.6554248
1997	96.62111997
1998	94.45225496
1999	96.45788906
2000	100
2001	120.738225
2002	145.8547245
2003	162.2831267
2004	204.4581523
2005	226.5097544
2006	274.0355422
2007	301.4685517
2008	417.9518732
2009	335.6820156
2010	370.0778769
2011	421.5806545
2012	415.2689361
2013	417.0286707
2014	441.5034154
2015	412.4463613
2016	397.4742889
2017	395.5177724
2018	409.268839