Year	2000 = 100
1980	18.62086237
1981	29.02213403
1982	32.49143407
1983	27.70430266
1984	33.78531936
1985	37.2093093
1986	39.12669508
1987	32.73922398
1988	38.91664269
1989	27.42438032
1990	33.99711077
1991	40.68883669
1992	50.98412593
1993	41.95254676
1994	58.48724824
1995	47.99911749
1996	29.52800169
1997	65.53630712
1998	62.6580581
1999	82.91609655
2000	100
2001	96.37853328
2002	73.91228009
2003	84.50435283
2004	92.98203656
2005	87.69582451
2006	77.82856364
2007	72.13974458
2008	59.88312213
2009	72.3520159
2010	88.30633633
2011	84.00865492
2012	97.41216104
2013	80.66052642
2014	114.5554229
2015	110.0393295
2016	111.602288
2017	142.9522558
2018	139.5484727