Year	Index (2000=100)
1980	1.2483
1981	1.02918
1982	1.05362
1983	1.21414
1984	1.36183
1985	1.51623
1986	2.22386
1987	3.82971
1988	4.50609
1989	3.69441
1990	5.69208
1991	3.40547
1992	4.58377
1993	5.17161
1994	5.65294
1995	11.62078
1996	21.1258
1997	45.168
1998	40.01823
1999	64.63081
2000	100
2001	158.15861
2002	192.98086
2003	255.33273
2004	419.21996
2005	643.93801
2006	748.13127
2007	930.72015
2008	1387.21832
2009	829.5351
2010	911.57703
2011	1230.62899
2012	1412.94439
2013	1340.01823
2014	1148.58706
2015	592.52507
2016	437.55697