Year	2000 = 100
1980	56.37478243
1981	39.79097554
1982	30.50213103
1983	22.4970561
1984	22.86776561
1985	21.49423996
1986	29.88384459
1987	37.44052272
1988	36.69133682
1989	35.77817531
1990	38.36355128
1991	46.29268177
1992	57.28934101
1993	67.78209704
1994	79.5924419
1995	78.78068418
1996	90.44714009
1997	102.4102179
1998	112.1895466
1999	104.145143
2000	100
2001	93.95787538
2002	64.2019197
2003	67.66475741
2004	86.91376147
2005	95.64099875
2006	108.6613467
2007	117.4014231
2008	154.9257334
2009	144.1866432
2010	164.9849962
2011	179.8668705
2012	196.3389645
2013	201.3155473
2014	207.4530922
2015	196.6283038
2016	184.3164552
2017	187.4758122
2018	187.0112491