Year	2015 = 100
1980	23.2036740202
1981	23.3045478753
1982	16.6774381953
1983	21.8881406784
1984	24.5068732305
1985	24.2372581591
1986	23.3551766364
1987	19.7550210236
1988	18.7753361361
1989	14.3379957669
1990	15.4214908703
1991	17.5203359624
1992	19.2432746635
1993	16.9546874507
1994	20.2059878371
1995	20.2718990408
1996	23.084062485
1997	28.531980652
1998	30.6419994012
1999	37.3229058326
2000	34.9423672283
2001	35.6078103687
2002	37.1054848495
2003	39.0156340932
2004	44.1762860066
2005	49.3870528221
2006	52.5970631235
2007	55.8458141322
2008	56.6196371045
2009	53.199765706
2010	60.1686144699
2011	70.754937388
2012	74.7850328534
2013	75.0627775006
2014	81.0889023719
2015	100
2016	88.0960727794
2017	113.0694390344
2018	103.8907639291
2019	104.7344445555
2020	107.2535624218
2021	144.2178575349