Year	2010 = 100
1968	2.42139972963273
1969	2.5188177268708
1970	2.64502458794381
1971	2.76036021685964
1972	2.91890474093241
1973	3.36372147471533
1974	4.08250993877408
1975	4.54554740415874
1976	4.98135623438809
1977	5.55758461574733
1978	6.03406877380219
1979	6.89025398990017
1980	8.25490470216206
1981	9.08243883416628
1982	10.1603961315806
1983	11.4733601852116
1984	13.0779609039135
1985	14.5739135893142
1986	15.5280890192542
1987	17.401673042806
1988	19.8450483593032
1989	22.1363247814399
1990	27.9296438379497
1991	31.8544538620811
1992	36.4478436456304
1993	42.7310122222372
1994	54.0042908055644
1995	62.3164468240714
1996	66.2970344239871
1997	69.4036043915676
1998	71.5938353636417
1999	74.6727981887097
2000	80.3557992311846
2001	83.1016260659782
2002	84.8401843618872
2003	89.1068372362165
2004	94.4610140136811
2005	100
2006	105.087528644997
2007	110.035239075488
2008	120.31089466512
2009	115.490866110232