Year	2000 = 100
1980	51.08851837
1981	50.48233201
1982	45.48651946
1983	43.8738163
1984	39.2842619
1985	35.70671692
1986	49.8795633
1987	44.97052634
1988	48.33325952
1989	64.89179831
1990	74.57591631
1991	74.21278866
1992	73.10782916
1993	74.89923351
1994	89.32882248
1995	88.63781864
1996	83.3195945
1997	86.25087804
1998	89.78121187
1999	89.06059374
2000	100
2001	110.596761
2002	110.9015903
2003	127.0084965
2004	136.4005974
2005	157.6912175
2006	184.697241
2007	186.6120901
2008	218.3968762
2009	196.2438128
2010	219.5565772
2011	228.7302414
2012	275.4218041
2013	290.8026116
2014	311.2216464
2015	287.4188485
2016	282.7380481
2017	265.1465028
2018	269.2249194