Year	2015 = 100
1981	21.2816809889
1982	26.0928675769
1983	17.0821017326
1984	15.2480548469
1985	7.4828253433
1986	7.8656291344
1987	6.7805764323
1988	5.7504726966
1989	4.2307711527
1990	5.4255338884
1991	12.2972121461
1992	12.1866945448
1993	14.7277561539
1994	14.0715868005
1995	20.7500341695
1996	17.1869609412
1997	21.7381044691
1998	28.4443740984
1999	25.2862419718
2000	25.8036055718
2001	32.4378289127
2002	26.5343102165
2003	21.9071156755
2004	20.5443445183
2005	15.7101914053
2006	19.3947425718
2007	22.1148995732
2008	24.4540551137
2009	28.0382926425
2010	28.1541784414
2011	44.9700067636
2012	46.0732197672
2013	62.6108026499
2014	86.5914822126
2015	100
2016	94.011018859
2017	110.2055213111
2018	103.7863636428
2019	102.2682407377
2020	100.5757312603
2021	65.2804324061