Year constant LCU 1960 48827607409.625694 1961 47236349886.384315 1962 50608163453.79359 1963 52081395622.82929 1964 48835052226.53965 1965 45955486398.685646 1966 50021059110.55607 1967 53078671281.01487 1968 54087191776.60404 1969 53175220940.21386 1970 55810324042.11932 1971 57150872577.99322 1972 63056500979.296936 1973 61956016898.803635 1974 50688184052.46274 1975 65701825686.44121 1976 65101852825.27411 1977 80001955351.49951 1978 82999352572.93988 1979 81163101412.23433 1980 77641039295.9479 1981 81645427910.34464 1982 84158518893.55186 1983 77369646728.19374 1984 76354943480.44113 1985 81254277829.8312 1986 84142171236.89902 1987 89720362588.22075 1988 88765440339.01402 1989 87705029222.87314