Year	2015 = 100
1980	22.3562640683
1981	19.9261474617
1982	15.9760057406
1983	19.0245917288
1984	18.7731157667
1985	20.9821325631
1986	23.9414333104
1987	24.4773414588
1988	24.7954784462
1989	26.2404785313
1990	31.9053890676
1991	38.5747074793
1992	39.7830384259
1993	44.2494916145
1994	50.8111289759
1995	54.4945503098
1996	51.0574527815
1997	57.9847310659
1998	59.562124889
1999	62.8440926837
2000	72.8825732466
2001	76.1120803109
2002	79.9360637772
2003	83.274709944
2004	84.1165330367
2005	81.1764637338
2006	86.656893099
2007	93.8852327127
2008	90.3844946098
2009	77.2253759022
2010	82.8221805891
2011	85.3878873883
2012	86.3188565089
2013	91.2757313583
2014	91.5859205375
2015	100
2016	101.0391028081
2017	103.8660622929
2018	104.8921308544
2019	108.601411071
2020	100.2163026501
2021	126.683671512
