1976	71.51781	84.19469
1977	75.92272	86.61512
1978	74.84288	88.85598
1979	78.19090	92.55859
1980	79.94790	93.47230
1981	81.07337	92.87690
1982	82.50757	94.45159
1983	86.92387	96.76963
1984	85.39369	94.89384
1985	86.93682	96.43253
1986	88.72816	101.1006
1987	90.94034	105.3035
1988	92.86845	106.9508
1989	96.30669	111.8271
1990	100.3248	116.1790
1991	103.3105	119.3109
1992	106.6728	122.3076
1993	106.9189	123.7192
1994	109.2080	126.8320
1995	109.9648	127.9926
1996	113.1946	127.8534
1997	113.0571	125.5263
1998	115.4087	128.5724
1999	117.5934	133.5246
2000	120.9613	136.0359
2001	122.3514	136.0489
2002	123.6209	137.6382
2003	124.7859	140.2117
2004	127.5448	143.5573
2005	130.2809	147.1803
2006	132.6170	151.5021
2007	133.4931	153.9863
2008	134.4570	156.6765