Year	2000 = 100
1980	74
1981	83
1982	90
1983	73
1984	67
1985	77
1986	71
1987	81
1988	83
1989	83
1990	80
1991	83
1992	86
1993	86
1994	83
1995	90
1996	93
1997	100
1998	95
1999	93
2000	100
2001	102.0965642
2002	102.0966584
2003	98.64406159
2004	91.33692771
2005	83.03370395
2006	77.6015302
2007	71.52440905
2008	60.17156883
2009	68.23165527
2010	63.18977524
2011	55.96624744
2012	55.47968693
2013	56.35067
2014	57.48186696
2015	66.98536629
2016	71.84920135
2017	69.08580912
2018	73.04738018