Year	2000 = 100
1980	60.10376586
1981	55.12452628
1982	47.78881619
1983	48.68010116
1984	52.56045158
1985	56.52413353
1986	61.89720513
1987	57.34657942
1988	61.00592016
1989	62.20879256
1990	60.21608226
1991	57.41904162
1992	58.07844757
1993	58.98422498
1994	61.01316638
1995	52.90155665
1996	60.03780588
1997	72.96628128
1998	87.59996949
1999	83.05123983
2000	100
2001	102.3712723
2002	112.0084525
2003	112.2818572
2004	135.6062027
2005	150.9844335
2006	157.8205088
2007	172.9855431
2008	185.3958925
2009	144.3694508
2010	187.3664344
2011	238.5898166
2012	250.0243016
2013	234.2882682
2014	242.7801681
2015	246.0343453
2016	238.0663966
2017	259.4638085
2018	272.327978