Year	2015 = 100
1980	45.7117496413
1981	57.5949634723
1982	41.5686349644
1983	40.5044400378
1984	48.9114132592
1985	60.9387613088
1986	67.5725996372
1987	68.5046906179
1988	52.1658671582
1989	51.7873772263
1990	58.4553523003
1991	47.7944022399
1992	38.0101947413
1993	34.5562225386
1994	12.6489054142
1995	17.678153855
1996	23.3847528652
1997	25.208337454
1998	23.2314843086
1999	27.067201715
2000	19.6832310236
2001	36.0921168063
2002	27.2187520043
2003	24.0410243633
2004	29.7345144577
2005	28.8756557451
2006	29.6406269417
2007	31.2404529145
2008	33.7763802083
2009	35.4309070611
2010	36.65399861
2011	53.7841391923
2012	77.787316639
2013	93.9946222799
2014	97.7017258921
2015	100
2016	103.5989583116
2017	135.429597398
2018	145.2306383304
2019	160.5667616664
2020	158.6086178651
2021	151.2287240039