Year	2015 = 100
1980	237.7379985304
1981	237.1954520696
1982	228.5654665144
1983	216.8978974528
1984	209.0586085476
1985	184.6970312095
1986	149.4044395929
1987	152.3154809344
1988	151.6603500763
1989	339.0362749752
1990	475.0981320426
1991	386.8706009455
1992	348.8878360665
1993	354.9088611599
1994	343.6620194627
1995	401.9434668532
1996	451.0817090026
1997	441.7365998115
1998	325.9768092005
1999	390.6898573704
2000	522.5847174954
2001	591.9509113599
2002	737.2724914041
2003	646.3931376558
2004	832.2053780306
2005	982.2234253632
2006	1231.6561765057
2007	1302.3044123027
2008	1738.1790290427
2009	1224.4089512627
2010	1443.3437105507
2011	1185.8080670133
2012	345.085498949
2013	192.74160801
2014	131.1236690019
2015	100
2016	80.4446399527
2017	80.3160530706
2018	71.2087168427
2019	58.263400084
2020	98.7423299033
2021	83.3742780985