Year	2015 = 100
1980	11.6212760165
1981	9.7035254947
1982	9.7151518382
1983	8.9886543981
1984	9.3818633122
1985	8.8792475224
1986	7.5440066411
1987	7.9321476603
1988	8.0519884366
1989	10.3981250138
1990	9.6317104607
1991	9.9244260274
1992	10.3874526275
1993	10.0894604887
1994	13.1888052862
1995	16.3705331632
1996	17.5219257757
1997	20.3447812076
1998	17.1616015276
1999	18.1475959821
2000	20.7333783384
2001	20.9445008149
2002	22.9960139276
2003	27.1005008609
2004	38.1850869663
2005	51.77509055
2006	71.1398934371
2007	84.120447036
2008	91.8943253394
2009	81.4658431351
2010	107.2996011958
2011	139.6630458749
2012	136.8525945597
2013	126.9237290724
2014	115.1079964897
2015	100
2016	108.8582452695
2017	129.5408571846
2018	143.149581993
2019	138.4548250877
2020	118.0506818294
2021	177.207106626
