Year	2000 = 100
1980	30.24008542
1981	32.88517746
1982	37.03943433
1983	30.83560593
1984	34.25205443
1985	33.71379397
1986	31.40332015
1987	32.45047483
1988	38.31446415
1989	42.90246062
1990	47.63095211
1991	51.37448486
1992	56.38132465
1993	53.05983466
1994	58.30719549
1995	67.89199058
1996	64.72140262
1997	71.81648477
1998	87.46652577
1999	83.54484424
2000	100
2001	98.21936978
2002	104.8245335
2003	112.6216636
2004	127.1235439
2005	139.7662014
2006	154.8607728
2007	182.6141702
2008	206.5746904
2009	179.9411367
2010	177.9641176
2011	190.9805644
2012	237.4977284
2013	240.1411279
2014	246.2116921
2015	225.7299951
2016	298.5682425
2017	303.6897179
2018	316.5623664