Year	2015 = 100
1980	37.7225806944
1981	46.6564366979
1982	39.9379543426
1983	33.5590141813
1984	34.633303399
1985	22.8272544681
1986	23.2280255637
1987	23.9516400784
1988	32.662845448
1989	27.4027246312
1990	29.7015922444
1991	29.8518813996
1992	28.1152065915
1993	30.8983393107
1994	24.0629653727
1995	32.8200133954
1996	35.7477631023
1997	37.2694625346
1998	33.2704364238
1999	25.3089049875
2000	22.7159291512
2001	26.7636496502
2002	26.7575628489
2003	26.355834186
2004	38.5050824846
2005	37.0016434336
2006	36.7676730206
2007	40.982628281
2008	55.6923367213
2009	78.2724389953
2010	107.5803031271
2011	48.6943818798
2012	133.9095502035
2013	164.4070843675
2014	115.6129370799
2015	100
2016	52.7542759816
2017	64.253454267
2018	83.9138109508
2019	104.5979670198
2020	83.6782518766
2021	115.4762919296