Year	2000 = 100
1980	28.56360841
1981	30.89248998
1982	24.41415563
1983	21.3223317
1984	24.82137612
1985	24.43895126
1986	23.26306634
1987	27.26469904
1988	34.51837356
1989	41.14071327
1990	40.30243035
1991	48.87599516
1992	52.26727397
1993	53.58907161
1994	49.57790214
1995	49.06100869
1996	48.73103611
1997	54.59043347
1998	56.297517
1999	70.55481169
2000	100
2001	98.61030048
2002	100.1361852
2003	105.221959
2004	99.12242555
2005	113.0947613
2006	125.9509123
2007	130.531809
2008	159.6685778
2009	127.5340177
2010	134.5932338
2011	158.5451452
2012	164.246995
2013	176.9690175
2014	183.5636832
2015	189.0664637
2016	181.7294377
2017	174.7031201
2018	183.1061672