Year	2010 = 100
1977	37.0077415011781
1978	40.6428811847863
1979	44.2780208683945
1980	50.4880511612252
1981	57.404914170313
1982	66.1898350723662
1983	70.8347357791989
1984	81.0838101649276
1985	86.4355435880175
1986	89.7298889262874
1987	93.4365533490407
1988	95.9777852574891
1989	98.1193200942444
1990	100
1991	96.4742510939078
1992	98.0814540558735
1993	101.068663749579