Year	2000 = 100
1980	80.03293413
1981	66.97305389
1982	64.11976048
1983	61.61377246
1984	54.37275449
1985	42.5748503
1986	38.77844311
1987	46.04790419
1988	40.76646707
1989	48.35329341
1990	31.43712575
1991	38.77245509
1992	47.00598802
1993	48.35329341
1994	49.8502994
1995	76.34730539
1996	83.08383234
1997	91.31736527
1998	70.35928144
1999	77.84431138
2000	100
2001	34.23652695
2002	26.67664671
2003	25.40419162
2004	50.41916168
2005	46.39221557
2006	69.86526946
2007	74.76047904
2008	121.7664671
2009	82.48502994
2010	106.257485
2011	156.3323353
2012	150.4041916
2013	172.1257485
2014	298.8922156
2015	252.5748503
2016	194.8802395
2017	162.994012
2018	164.6706587