Year	2015 = 100
1980	16.3303083291
1981	12.4629269164
1982	13.761180551
1983	13.7586641924
1984	13.9872022017
1985	16.5261712244
1986	25.3818782398
1987	33.0512157196
1988	37.4488353601
1989	37.0220307675
1990	44.8351387486
1991	44.8426502654
1992	48.9165233722
1993	48.7816915816
1994	50.5810763003
1995	57.7829212891
1996	67.6937922852
1997	59.8149860855
1998	61.808731271
1999	59.6665916329
2000	58.4937119289
2001	61.1550443278
2002	67.6772622547
2003	71.3082303513
2004	74.8775864947
2005	80.5196938764
2006	87.4903260028
2007	84.0737973165
2008	89.5604474224
2009	72.8272260058
2010	84.960332109
2011	96.3624734129
2012	99.5225239017
2013	107.774306306
2014	116.2313520365
2015	100
2016	88.6377440374
2017	87.9717626519
2018	88.8757275762
2019	83.511019955
2020	67.2038715912
2021	73.7971144549