Year	2015 = 100
1980	37.9272367238
1981	58.2384398874
1982	59.935331094
1983	52.0850790407
1984	57.9037789812
1985	51.9789146479
1986	51.9883102862
1987	33.7247022492
1988	38.3967892524
1989	36.8119432985
1990	39.5094308272
1991	35.9041496534
1992	29.0112214976
1993	45.8865901599
1994	32.5498083372
1995	35.3299579324
1996	38.3184353404
1997	49.4253026338
1998	49.3921697825
1999	38.8108954303
2000	43.4074913151
2001	46.7162462229
2002	52.8851533324
2003	53.8082902494
2004	55.8746818659
2005	58.2833640365
2006	66.0517372769
2007	75.793005219
2008	81.6623303617
2009	83.0537397856
2010	95.3259911561
2011	104.1466060013
2012	103.3907344261
2013	112.8982566303
2014	117.5933230993
2015	100
2016	104.1169920217
2017	110.5661795229
2018	115.761180791
2019	113.6005650975
2020	101.7443506136
2021	93.2248198516