| Year | Billions of current dollars | Billions of 1987 dollars | |||||||
| Opening stock | Additions | Depletion | Revaluation adjustment | Closing stock (1+2-3+4) | Opening stock | Additions | Depletion | Closing stock (6+7-8) | |
| (1) | (2) | (3) | (4) | (5) | (6) | (7) | (8) | (9) | |
| 1958 | 181.9 | 7.7 | 7.1 | 5.9 | 188.3 | 1,077.4 | 52.7 | 43.6 | 1,086.5 |
| 1959 | 188.3 | 9.5 | 7.2 | -1.5 | 189.3 | 1,086.5 | 65.3 | 45.9 | 1,105.9 |
| 1960 | 189.3 | 4.3 | 7.4 | 5.5 | 191.6 | 1,105.9 | 34.5 | 47.3 | 1,093.1 |
| 1961 | 191.6 | 9.9 | 7.5 | 4.0 | 198.0 | 1,093.1 | 61.4 | 48.1 | 1,106.4 |
| 1962 | 198.0 | 11.6 | 7.8 | 3.9 | 205.7 | 1,106.4 | 68.4 | 49.5 | 1,125.2 |
| 1963 | 205.7 | 9.5 | 8.2 | 5.3 | 212.3 | 1,125.2 | 58.8 | 51.7 | 1,132.3 |
| 1964 | 212.3 | 12.6 | 8.5 | 0 | 216.4 | 1,132.3 | 73.6 | 53.4 | 1,152.6 |
| 1965 | 216.4 | 12.3 | 8.6 | -.7 | 219.4 | 1,152.6 | 76.0 | 55.0 | 1,173.6 |
| 1966 | 219.4 | 11.4 | 9.0 | -1.5 | 220.4 | 1,173.6 | 71.4 | 58.6 | 1,186.4 |
| 1967 | 220.4 | 11.5 | 9.3 | 3.2 | 225.8 | 1,186.4 | 72.2 | 61.4 | 1,197.1 |
| 1968 | 225.8 | 9.4 | 9.6 | .2 | 225.8 | 1,197.1 | 56.1 | 63.9 | 1,189.3 |
| 1969 | 225.8 | 5.6 | 10.0 | 2.8 | 224.2 | 1,189.3 | 35.9 | 66.4 | 1,158.8 |
| 1970 | 224.2 | 31.0 | 11.0 | 15.3 | 259.5 | 1,158.8 | 184.1 | 69.7 | 1,273.2 |
| 1971 | 259.5 | 10.9 | 11.4 | 8.1 | 267.1 | 1,273.2 | 52.1 | 69.0 | 1,256.4 |
| 1972 | 267.1 | 6.9 | 11.7 | 7.9 | 270.3 | 1,256.4 | 36.8 | 69.6 | 1,223.6 |
| 1973 | 270.3 | 6.7 | 12.0 | 42.2 | 307.1 | 1,223.6 | 35.3 | 68.9 | 1,190.0 |
| 1974 | 307.1 | 12.1 | 14.9 | 79.4 | 383.7 | 1,190.0 | 44.4 | 66.1 | 1,168.3 |
| 1975 | 383.7 | 9.4 | 19.2 | 101.1 | 475.0 | 1,168.3 | 30.8 | 62.9 | 1,136.1 |
| 1976 | 475.0 | 13.6 | 25.2 | 88.9 | 552.3 | 1,136.1 | 30.1 | 62.3 | 1,103.9 |
| 1977 | 552.3 | 34.4 | 28.9 | 55.2 | 613.1 | 1,103.9 | 67.8 | 62.6 | 1,109.1 |
| 1978 | 613.1 | 23.1 | 31.8 | 35.0 | 639.3 | 1,109.1 | 45.8 | 64.4 | 1,090.5 |
| 1979 | 639.3 | 43.2 | 37.7 | 105.6 | 750.4 | 1,090.5 | 67.3 | 65.5 | 1,092.3 |
| 1980 | 750.4 | 50.7 | 45.5 | 125.3 | 881.0 | 1,092.3 | 71.4 | 65.7 | 1,097.9 |
| 1981 | 881.0 | 41.7 | 52.3 | 16.7 | 887.1 | 1,097.9 | 46.7 | 65.4 | 1,079.3 |
| 1982 | 887.1 | 50.3 | 76.0 | 180.2 | 1,041.6 | 1,079.3 | 37.7 | 62.8 | 1,054.2 |
| 1983 | 1,041.6 | 84.6 | 97.3 | 245.2 | 1,274.2 | 1,054.2 | 44.7 | 60.6 | 1,038.3 |
| 1984 | 1,274.2 | 102.5 | 101.8 | 21.1 | 1,296.0 | 1,038.3 | 56.8 | 64.2 | 1,030.8 |
| 1985 | 1,296.0 | 95.5 | 92.0 | -121.4 | 1,178.1 | 1,030.8 | 69.5 | 63.2 | 1,037.1 |
| 1986 | 1,178.1 | 64.1 | 75.3 | -100.1 | 1,066.9 | 1,037.1 | 56.0 | 61.6 | 1,031.6 |
| 1987 | 1,066.9 | 64.6 | 61.5 | -119.6 | 950.3 | 1,031.6 | 64.6 | 61.5 | 1,034.6 |
| 1988 | 950.3 | 33.4 | 44.6 | -111.5 | 827.6 | 1,034.6 | 42.5 | 62.2 | 1,014.9 |
| 1989 | 827.6 | 50.4 | 44.4 | 29.6 | 863.2 | 1,014.9 | 65.0 | 61.1 | 1,018.8 |
| 1990 | 863.2 | 60.5 | 49.7 | 41.5 | 915.5 | 1,018.8 | 72.1 | 61.3 | 1,029.6 |
| 1991 | 915.5 | 43.1 | 51.3 | .4 | 907.6 | 1,029.6 | 50.3 | 61.2 | 1,018.7 |
