Year	2000 = 100
1980	24.65366049
1981	28.01279671
1982	25.02784998
1983	22.40281071
1984	18.76945928
1985	18.6723414
1986	19.44071524
1987	20.22337113
1988	24.34231198
1989	28.5926476
1990	31.98891714
1991	39.26418921
1992	49.73006941
1993	55.75709103
1994	60.0531292
1995	67.91916044
1996	87.30095961
1997	97.42298019
1998	93.08625676
1999	90.60822906
2000	100
2001	106.5256271
2002	121.8332422
2003	148.7446517
2004	205.896509
2005	241.8074287
2006	285.8048751
2007	378.4757283
2008	572.1410443
2009	428.4630886
2010	471.3093975
2011	656.7824993
2012	732.7518613
2013	772.887427
2014	788.4434936
2015	751.2386154
2016	774.0899801
2017	765.5207183
2018	722.6744095