Year including construction (current US$) 1960 12571994.971202012 1961 12571994.971202012 1962 12571994.971202012 1963 12571994.971202012 1964 13355994.657602137 1965 12571994.971202012 1966 18801992.479203008 1967 21671991.33120347 1968 34145986.34160546 1969 40428571.428571425 1970 45585714.28571428 1971 49785664.92690387 1972 54168084.382443 1973 58839449.17615219 1974 80000000 1975 80000000 1976 101604427.64098491 1977 55000013.91304348 1978 39088388.95027624 1979 52099737.5328084 1980 45342411.17403843 1981 49302475.079264425 1982 58324242.343612805 1983 50012559.370289735 1984 54984945.33127577 1985 64165321.348314606 1986 88509932.67999074