Year	2015 = 100
1980	36.1060213929
1981	33.611553509
1982	33.5110541838
1983	25.3155256138
1984	24.9586007526
1985	27.6673317172
1986	25.9331087778
1987	31.4009652421
1988	34.6245032338
1989	33.176519233
1990	37.760426328
1991	28.8299063363
1992	24.6921856312
1993	11.6545503958
1994	14.9912442386
1995	35.4777123209
1996	38.3686184468
1997	41.4894045165
1998	39.65106406
1999	41.0747003522
2000	38.3144229255
2001	24.4941505631
2002	21.0231879018
2003	20.2991180101
2004	21.3102047918
2005	21.9091832421
2006	50.599263705
2007	53.6242490429
2008	55.5804830937
2009	60.3620052196
2010	61.0674788421
2011	70.445483895
2012	78.4879992001
2013	92.9132415763
2014	86.7186775558
2015	100
2016	105.5777865629
2017	78.8722158884
2018	79.1320038828
2019	81.7263289384
2020	94.1692656783
2021	86.9135899218