Year	2015 = 100
1980	10.8026329743
1981	10.0157412886
1982	10.4266929389
1983	8.5741021814
1984	7.8488778185
1985	8.829959189
1986	8.3557900241
1987	8.9001336543
1988	9.0574212479
1989	8.404942398
1990	8.3300039329
1991	15.0899676311
1992	17.4404719354
1993	15.137796672
1994	15.2372357088
1995	11.646500166
1996	12.1568378576
1997	11.6941856882
1998	10.7839754637
1999	10.407540662
2000	12.2643597992
2001	12.5625158172
2002	11.6425578747
2003	14.6371060474
2004	24.9329124495
2005	38.5588478111
2006	31.511327303
2007	38.6668557844
2008	52.4162712715
2009	40.4435870148
2010	52.2569595066
2011	66.6255307121
2012	84.4892400502
2013	107.4272181704
2014	98.3347286328
2015	100
2016	58.6979568322
2017	95.1123106406
2018	85.9517760678
2019	95.0424024775
2020	74.0996827232
2021	96.2351075556