Year	2015 = 100
1980	1.5097873624
1981	1.6157068233
1982	2.27860255
1983	3.0003166407
1984	2.8118542486
1985	2.7948478645
1986	2.3729840349
1987	4.271371264
1988	4.7459680697
1989	5.9377333862
1990	7.245511253
1991	8.5016108027
1992	9.9818255118
1993	10.0867641376
1994	11.6882646981
1995	14.1276922862
1996	15.9105942914
1997	18.3953722407
1998	18.6658924202
1999	21.2070946551
2000	20.491508138
2001	20.7240605672
2002	20.6565623591
2003	24.8256316559
2004	33.8449220988
2005	39.2789500821
2006	48.8584229689
2007	57.8106370622
2008	73.1670077481
2009	50.7571265848
2010	57.5242969856
2011	77.2696334732
2012	81.9627103662
2013	91.4078312331
2014	105.0730396785
2015	100
2016	112.0781452999
2017	124.470395256
2018	156.0801245894
2019	152.2670029117
2020	96.9163593114
2021	135.7367961205