Year	2015 = 100
1980	34.4128000067
1981	33.8374249489
1982	40.0383284807
1983	27.9615168032
1984	20.7833528585
1985	16.615701104
1986	14.620569403
1987	13.1985385555
1988	12.2027595839
1989	13.2258290718
1990	12.0076107324
1991	18.0530016445
1992	11.959635736
1993	15.8422532065
1994	12.2431538789
1995	18.56601321
1996	23.2374092896
1997	32.3614209876
1998	32.4807754763
1999	29.6865590785
2000	35.8280082269
2001	38.6548250705
2002	39.4562980444
2003	42.153146316
2004	52.6157261908
2005	61.6691107847
2006	70.2315606986
2007	82.9939347965
2008	103.8816960888
2009	75.3323621638
2010	70.1786959709
2011	103.0102891716
2012	98.1803313976
2013	136.7821942882
2014	121.8322727165
2015	100
2016	87.2089245147
2017	74.6593739807
2018	83.6033791766
2019	68.6613235008
2020	52.8203184131
2021	62.4130834958