Year	2000 = 100
1980	20.12238029
1981	19.69819749
1982	16.64962894
1983	13.36467147
1984	14.7594697
1985	16.11522367
1986	17.03489305
1987	36.47531348
1988	30.71186603
1989	33.13416583
1990	27.48400178
1991	27.7614876
1992	40.38063562
1993	50.95223421
1994	55.72455322
1995	58.70491202
1996	73.87747036
1997	77.50395257
1998	83.86623377
1999	74.67748918
2000	100
2001	128.570741
2002	164.2043924
2003	219.0954493
2004	325.6409025
2005	300.5265786
2006	318.7697829
2007	345.3903385
2008	383.9423933
2009	319.7529085
2010	375.5145673
2011	448.1401815
2012	363.1596247
2013	323.56834
2014	312.3846136
2015	331.5418085
2016	352.1523519
2017	413.1355242
2018	477.2449171