YEAR  KWH   PELEC   GNP   NSF
1951  330.00 3.12  579.40   0
1952  356.00 3.09  600.80   0
1953  396.00 3.01  623.60   0
1954  424.00 2.97  616.10   0
1955  497.00 2.75  657.50   0
1956  546.00 2.61  671.60   0
1957  576.00 2.57  683.80   0
1958  588.00 2.59  680.90   0
1959  647.00 2.50  721.70   0
1960  689.00 2.65  737.20   0
1961  723.00 2.63  756.60   0
1962  778.00 2.55  800.30   0
1963  833.00 2.47  832.50   0
1964  896.00 2.38  876.40   0
1965  954.00 2.29  929.30   0
1966 1035.00 2.16  984.80   0
1967 1099.00 2.09 1011.40   0
1968 1203.00 1.97 1058.10   0
1969 1314.00 1.88 1087.60   0
1970 1392.00 1.83 1085.60   0
1971 1470.00 1.84 1122.40   0
1972 1595.00 1.86 1185.90   0
1973 1712.91 1.85 1254.30 7.5
1974 1705.92 2.16 1246.30 6.7
1975 1747.09 2.32 1231.60 6.3
1976 1855.25 2.33 1298.20 5.8
1977 1948.36 2.44 1369.70 5.3
1978 2017.92 2.45 1438.60 4.8
1979 2071.10 2.44 1479.40 4.1
1980 2094.45 2.65 1474.00 3.7
1981 2147.10 2.79 1502.60 3.3
1982 2086.44 2.96 1479.98 3.2
1983 2150.96 2.92 1534.68 2.8
1984 2278.37 2.92 1639.32 2.4