Year	2015 = 100
1980	19.2480317465
1981	18.4507759944
1982	17.8813076
1983	19.3049785876
1984	15.5464871814
1985	11.6171552552
1986	11.6171552552
1987	9.910331929
1988	12.9554059845
1989	11.7853593449
1990	13.3144874435
1991	19.7373527367
1992	22.1581207036
1993	25.4204364055
1994	31.2838517289
1995	38.3758424031
1996	39.7595978575
1997	39.3722011765
1998	37.2789302484
1999	32.7298796255
2000	32.8498898159
2001	38.9136736435
2002	34.5899321202
2003	38.5709380301
2004	50.6668685805
2005	50.793417098
2006	50.8672370747
2007	64.5977528151
2008	88.3414211881
2009	87.392307192
2010	97.3369126823
2011	109.4117517966
2012	115.7128141232
2013	116.1293697133
2014	116.4302863001
2015	100
2016	102.1258835102
2017	104.9887751253
2018	107.5449236673
2019	103.5626786267
2020	59.8714446302
2021	73.0655633235