Year	2015 = 100
1980	19.9093332632
1981	15.8810766224
1982	16.5131915834
1983	17.5063976608
1984	19.013839353
1985	19.1231695665
1986	15.6554563282
1987	19.0669425991
1988	19.3142645303
1989	19.3950428432
1990	26.2769824525
1991	22.6341764727
1992	22.3905262833
1993	21.592991149
1994	24.5045177471
1995	25.9012969749
1996	26.7192326778
1997	25.6286517406
1998	25.3560065063
1999	26.7192326778
2000	23.7201351241
2001	24.5380708271
2002	24.4527328495
2003	28.6277492943
2004	34.8909555477
2005	40.6680353507
2006	59.2387199916
2007	62.5554492256
2008	85.4936378321
2009	80.1849625261
2010	77.7213402152
2011	82.9664891803
2012	80.827859975
2013	85.3379573906
2014	85.4236533524
2015	100
2016	115.0017585657
2017	100.9809775461
2018	106.3460904067
2019	97.2075675393
2020	81.9702435051
2021	92.551877571