Year	2015 = 100
1980	12.7126936515
1981	12.3265156104
1982	13.4482290894
1983	11.3307159387
1984	11.1002112764
1985	12.1675002065
1986	11.3205905868
1987	11.2102445457
1988	10.3565231854
1989	9.67910572
1990	9.0133755322
1991	16.5500572862
1992	18.3778765365
1993	16.4903350639
1994	18.1970481849
1995	13.8065463953
1996	13.6108942581
1997	13.8630760272
1998	14.4885916652
1999	15.8296305457
2000	19.7730384408
2001	20.6323488481
2002	19.641043586
2003	22.9056674951
2004	36.5697059641
2005	53.9390622736
2006	40.9249396924
2007	44.8029375142
2008	51.5269010878
2009	44.3234132543
2010	52.1355126998
2011	55.0325670792
2012	70.793568406
2013	92.5647119669
2014	85.9336602004
2015	100
2016	60.3992242503
2017	94.6207053066
2018	80.4986045697
2019	90.648152973
2020	70.9251454407
2021	79.2249415011