Year	2010 = 100
1975	16.7387549011599
1976	19.1087427703492
1977	20.3910550474511
1978	21.501629072999
1979	22.8984335175746
1980	26.3160247199666
1981	28.6974618058576
1982	29.6076745381834
1983	30.7869438643987
1984	31.3078832268104
1985	31.7715765054851
1986	7.95720564737705
1987	31.8803440649229
1988	34.9945310233208
1989	46.79867350166
1990	53.5422621726026
1991	56.2900741947184
1992	58.6314390218963
1993	60.6249079486407
1994	63.5564798997355
1995	62.0222905786626
1996	63.292638424137
1997	64.2893728875093
1998	64.6997929606625
1999	63.1469979296066
2000	60.8889751552795
2001	59.9524456521739
2002	58.9900362318841
2003	59.7130564182195
2004	64.745082815735
2005	69.236865942029
2006	73.7383540372671
2007	80.0174689440994
2008	95.5615942028985
2009	96.4479813664596
2010	100