Year	2000 = 100
1980	37.36049833
1981	36.09544422
1982	48.45958953
1983	45.14053355
1984	55.1929708
1985	50.73438791
1986	51.41585654
1987	46.75105613
1988	44.11463857
1989	39.44908694
1990	45.47335434
1991	52.77647883
1992	51.26624969
1993	54.07737604
1994	62.98815165
1995	58.86468775
1996	37.84562975
1997	34.06097879
1998	62.68361349
1999	70.65573744
2000	100
2001	96.73378068
2002	89.89173988
2003	101.0581521
2004	104.308152
2005	148.4481253
2006	224.5920008
2007	152.5678326
2008	173.6419887
2009	183.0875576
2010	223.8152122
2011	284.9083704
2012	285.9862971
2013	315.5117533
2014	304.4068201
2015	325.1519143
2016	289.8733676
2017	344.8108121
2018	345.4123275