Year	2015 = 100
1980	17.2926057467
1981	20.217988377
1982	23.3050323652
1983	22.4697820255
1984	19.3168123125
1985	13.5405717799
1986	10.9557098771
1987	11.5284038305
1988	12.4880531605
1989	12.1263215437
1990	13.8197529173
1991	16.675196949
1992	19.0743202784
1993	16.1672821901
1994	13.386362897
1995	16.081814433
1996	15.8831604296
1997	16.4487804727
1998	17.182140065
1999	16.0360152379
2000	17.3109502974
2001	17.8748528762
2002	18.487588832
2003	23.875272604
2004	27.1221297447
2005	34.0395065976
2006	39.9596248951
2007	51.6466288358
2008	65.9130548205
2009	54.7026607585
2010	61.1779906548
2011	75.3316590296
2012	89.0754246149
2013	96.2670430311
2014	99.5179843097
2015	100
2016	80.2457762745
2017	77.0108642435
2018	78.4681695257
2019	87.6842359453
2020	79.0022506861
2021	87.5048523308