Year	2000 = 100
1985	4.097908374
1986	3.42131603
1987	4.973643832
1988	5.120552837
1989	5.13112183
1990	6.542623608
1991	4.256843319
1992	5.037115179
1993	7.718816852
1994	12.84758517
1995	16.39974833
1996	25.78330278
1997	65.47937859
1998	76.97042219
1999	81.87259915
2000	100
2001	179.148204
2002	213.8842095
2003	247.5776026
2004	314.2629087
2005	347.9537975
2006	337.0057838
2007	384.9783735
2008	411.3760703
2009	373.0532545
2010	339.2281507
2011	345.5351005
2012	382.7042647
2013	375.9372172
2014	350.4775491
2015	297.2511457
2016	278.2695858
2017	237.9350915
2018	219.3273483