Year	2000 = 100
1980	23.24826824
1981	22.64262616
1982	20.00697865
1983	25.5581696
1984	26.2358314
1985	24.46686347
1986	25.1219779
1987	32.29795579
1988	44.8743461
1989	54.04706737
1990	65.88174067
1991	71.37546341
1992	77.29791301
1993	86.5212391
1994	99.93809851
1995	114.3114371
1996	105.2324774
1997	95.75615133
1998	70.80876854
1999	85.57532544
2000	100
2001	99.5802729
2002	103.129172
2003	116.9295629
2004	139.5098198
2005	164.3117357
2006	168.1553356
2007	173.4818956
2008	197.2268462
2009	150.9991443
2010	191.1384347
2011	217.1746014
2012	232.7575149
2013	238.9602317
2014	221.2482874
2015	220.7457526
2016	217.3661781
2017	234.9929206
2018	250.6956107