Year	2010 = 100
1973	12.8744543317201
1974	21.2816487575386
1975	20.46213901943
1976	15.2757723303811
1977	18.0066319677216
1978	19.3080926796004
1979	23.3174949630037
1980	25.9982370717848
1981	28.7938213565144
1982	31.7090748823707
1983	34.7605775687794
1984	41.4110141033622
1985	44.4298606447028
1986	48.6331430490094
1987	51.2721205507052
1988	54.03819677636
1989	60.1368368032236
1990	62.7434519811954
1991	65.5221625251847
1992	67.3732370718603
1993	69.5181329751511
1994	72.5151108126259
1995	77.4093351242445
1996	78.7357286769644
1997	80.1166890530557
1998	86.5891537944929
1999	88.9984889187374
2000	86.9879113498992
2001	86.7108797850907
2002	88.5703492276696
2003	93.6366689053056
2004	97.1205507051712
2005	100