Year	2015 = 100
1980	31.6868183966
1981	26.5161213836
1982	25.386439071
1983	24.3942626856
1984	21.5273826453
1985	16.8563300144
1986	15.3532479833
1987	18.2313892833
1988	16.1403508788
1989	19.1441441428
1990	12.4466571841
1991	15.350877193
1992	18.6107159775
1993	19.1441441428
1994	19.7368421047
1995	30.2275960173
1996	32.8947368439
1997	36.1545756284
1998	27.8568041737
1999	30.8202939792
2000	39.5922238027
2001	13.5550023723
2002	10.5618776685
2003	10.0580844014
2004	19.9620673318
2005	18.3677098155
2006	27.6612138449
2007	29.5993361775
2008	48.2100521708
2009	32.6576576575
2010	42.0697012683
2011	61.8954480679
2012	59.5483641468
2013	68.1484115681
2014	118.3380749291
2015	100
2016	77.15742057
2017	64.5317686248
2018	67.7661213683
2019	61.2434803054
2020	65.3271692744
2021	87.5770507385