Year	2000 = 100
1980	30.03708419
1981	36.35357281
1982	27.5676648
1983	34.51253667
1984	34.79780816
1985	20.69480268
1986	18.4493275
1987	27.89195771
1988	28.1773399
1989	37.18259811
1990	20.70626003
1991	16.88160735
1992	17.67310566
1993	23.09735983
1994	27.81867493
1995	30.75220014
1996	34.33331488
1997	32.88869209
1998	32.97448387
1999	43.17263519
2000	100
2001	94.03885537
2002	107.8762384
2003	140.6985111
2004	209.110533
2005	267.0061438
2006	313.1123042
2007	491.4623346
2008	645.9580451
2009	457.0210882
2010	631.2060663
2011	564.2016937
2012	225.0788177
2013	265.109426
2014	240.7820889
2015	175.4032767
2016	171.2314717
2017	226.9541706
2018	192.8755189