Year	2000 = 100
1980	65
1981	69
1982	71
1983	76
1984	78
1985	77
1986	73
1987	68
1988	71
1989	75
1990	96
1991	93
1992	84
1993	83
1994	85
1995	91
1996	97
1997	92
1998	97
1999	94
2000	100
2001	102.8213863
2002	101.8035396
2003	98.36061997
2004	91.07489492
2005	84.32850942
2006	79.55522687
2007	75.05214124
2008	52.11944526
2009	61.31707138
2010	59.70501066
2011	48.54066517
2012	45.57807715
2013	45.12679645
2014	45.61852732
2015	50.54918899
2016	51.8455598
2017	51.0291271
2018	54.63008476