Year	2015 = 100
1981	874.2751757656
1982	748.8960822392
1983	727.4990513458
1984	727.4990513458
1985	411.0665370893
1986	331.9936146899
1987	267.8775577168
1988	305.7604708028
1989	331.5812003277
1990	305.3699722282
1991	270.1531564407
1992	215.3229950864
1993	193.9997470255
1994	226.4519106119
1995	259.8210897837
1996	200.203227345
1997	152.1566643599
1998	140.2694249208
1999	133.4973006666
2000	121.249841891
2001	125.2683499834
2002	117.9617698485
2003	126.5507774298
2004	121.9280559128
2005	127.450972146
2006	128.612032502
2007	121.0647641438
2008	125.3076716708
2009	117.7964462468
2010	111.0780891316
2011	106.8091896276
2012	107.1937776361
2013	109.9746488102
2014	108.8331792035
2015	100
2016	94.8749880877
2017	98.6114337157
2018	98.8389877438
2019	91.3259970312
2020	89.6494471798
2021	127.0298664738