Year	2015 = 100
1980	52.0194619961
1981	41.8226506651
1982	30.5362729356
1983	27.484034158
1984	23.7863681936
1985	23.8527591909
1986	29.11392396
1987	28.7189802818
1988	26.532491129
1989	22.3999733481
1990	25.9852711543
1991	28.2362202413
1992	30.640824967
1993	26.3689044688
1994	20.7193247684
1995	26.4912036614
1996	29.8933285145
1997	24.9709233692
1998	30.7059286001
1999	26.3750653915
2000	26.0244436831
2001	25.0115671665
2002	25.6552472049
2003	32.3679104449
2004	40.184025186
2005	44.9656483368
2006	46.7078143292
2007	60.991993894
2008	83.6784048651
2009	91.9542910585
2010	105.7474347056
2011	114.9428638297
2012	133.3337220257
2013	145.7376202581
2014	132.8281573378
2015	100
2016	94.8527504355
2017	110.8643286043
2018	110.5666472505
2019	103.5349130676
2020	102.6123649383
2021	111.3505694402