Year	2015 = 100
1980	15.9580795336
1981	17.8897180323
1982	19.5548168241
1983	18.3613482475
1984	18.7546115442
1985	17.300954055
1986	17.708114555
1987	17.4241150991
1988	17.6070440342
1989	24.5119603746
1990	28.6201213925
1991	34.8084196228
1992	45.0014022427
1993	38.1486559792
1994	47.3623707461
1995	52.3159111422
1996	69.415906019
1997	57.6446477873
1998	73.284760091
1999	62.7239130941
2000	56.6134946347
2001	53.4068064776
2002	54.002550344
2003	48.1639094379
2004	55.1357201874
2005	52.4254167906
2006	42.1632477134
2007	55.3039824286
2008	29.2616459991
2009	96.4696656964
2010	84.0191048601
2011	108.6009953216
2012	95.9362946212
2013	101.7535253792
2014	87.4626539034
2015	100
2016	91.5202225492
2017	83.7189003689
2018	98.2305406961
2019	75.7792284515
2020	77.5360740424
2021	87.8979987692