Year	2015 = 100
1980	23.4493595898
1981	27.3944400742
1982	35.6626375445
1983	19.5541850073
1984	25.142230268
1985	32.6021081411
1986	48.265395378
1987	59.0088910317
1988	40.7506123627
1989	43.4753533481
1990	44.6306735524
1991	26.8234841674
1992	41.9981154593
1993	36.288845393
1994	40.23334792
1995	50.3027213737
1996	40.8363430891
1997	40.611840561
1998	42.3029772725
1999	37.8658020734
2000	33.8053981445
2001	30.9160478747
2002	34.6722032372
2003	34.0943331867
2004	43.6996892155
2005	50.5636297125
2006	58.5174331228
2007	71.9222847756
2008	86.6805080593
2009	78.0124572669
2010	86.6805080593
2011	89.569858346
2012	93.4629688926
2013	61.5836116382
2014	117.1717544106
2015	100
2016	115.2313861843
2017	141.068770718
2018	174.9903207285
2019	174.3520632839
2020	171.356673847
2021	170.5398545315