Year	2015 = 100
1980	4.4372260959
1981	4.6549476248
1982	5.9704763015
1983	4.4648245988
1984	3.5632734784
1985	3.4927439692
1986	3.3700839528
1987	3.4774114669
1988	3.8852560218
1989	4.0661795459
1990	5.1977181979
1991	5.2743807084
1992	6.1789983295
1993	5.7987522785
1994	5.9091462933
1995	10.419968399
1996	8.7947231806
1997	10.1869143648
1998	10.4536999053
1999	7.6662510292
2000	9.9722593385
2001	11.5239085471
2002	12.4256007251
2003	15.0179312442
2004	18.4129581161
2005	30.8520606422
2006	50.4135642141
2007	71.8455379838
2008	85.5554872101
2009	76.4231638021
2010	71.2649635958
2011	68.4688211872
2012	94.408348172
2013	82.8997721232
2014	93.3688045368
2015	100
2016	98.3121043893
2017	91.6771910485
2018	97.1955823912
2019	89.4745483325
2020	79.2226885518
2021	85.8172498134