Year	2015 = 100
1980	24.4290144885
1981	22.4052159111
1982	19.423636213
1983	19.7858965994
1984	21.3630546239
1985	22.9740825254
1986	25.1579530714
1987	23.3083634523
1988	24.7956926849
1989	25.2845969469
1990	24.4746651881
1991	23.3378155192
1992	23.6058292996
1993	23.9739800994
1994	24.7986378916
1995	21.5016958651
1996	24.4022052315
1997	29.656949395
1998	35.6047727333
1999	33.7559537587
2000	40.6447318882
2001	41.6085291568
2002	45.5255352107
2003	45.636659818
2004	55.1167775111
2005	61.3672181889
2006	64.1457226663
2007	70.3095101983
2008	75.3536634383
2009	58.6785762061
2010	76.1545849103
2011	96.9741912695
2012	101.6217070406
2013	95.2258384553
2014	98.6773484019
2015	100
2016	96.7614486139
2017	105.2261758757
2018	105.0778638181
2019	106.8308635038
2020	93.4049769839
2021	124.1906660745