Year	2015 = 100
1980	37.9352126179
1981	34.9933494405
1982	28.5824194673
1983	21.8904879239
1984	20.2229948008
1985	19.9024483041
1986	12.8936921315
1987	13.6070825548
1988	13.1371958175
1989	14.683634949
1990	18.2386770564
1991	18.4701776938
1992	15.7375769488
1993	15.4652287334
1994	17.367386081
1995	22.8352251596
1996	23.2572571659
1997	23.661146261
1998	21.0068850012
1999	26.0884815784
2000	39.7655377765
2001	39.8213621097
2002	36.0997394884
2003	48.1727763228
2004	60.6364160969
2005	92.4978135615
2006	131.6961295037
2007	124.6394213138
2008	173.524609255
2009	84.9085504173
2010	102.1741626448
2011	139.0388909703
2012	120.7981019782
2013	174.4026795705
2014	135.1916785411
2015	100
2016	71.017863797
2017	81.3258280838
2018	97.9921845925
2019	66.9119836228
2020	51.3509490079
2021	80.1916635694