Year including construction (constant LCU) 1970 9285500928 1971 9623699456 1972 9747300352 1973 8079998976 1974 8235700224 1975 7943000064 1976 8871501824 1977 9662001152 1978 6002998784 1979 7261000192 1980 7580000256 1981 6374998016 1982 7290998784 1983 6067999232 1984 6246998016 1985 6395998208 1986 8253002240 1987 8660000768 1988 7894000128 1989 6975001088 1990 6918001152