Table A.1.—Value of the Resource, Additions, and Depletion of All Subsoil Assets, Current Rent Method I (Rate of Return)

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)
1958102.64.64.32.8105.6544.431.425.9550.0
1959105.65.94.4-2.0105.2550.039.527.3562.2
1960105.22.64.513.9117.2562.224.127.7558.5
1961117.26.04.61.5120.1558.533.928.2564.2
1962120.16.94.83.2125.4564.234.629.0569.8
1963125.46.05.39.6135.8569.832.930.3572.5
1964135.88.25.53.2141.7572.539.431.1580.7
1965141.77.95.5-2.3141.8580.742.332.1590.9
1966141.87.45.8-.6142.7590.939.934.1596.6
1967142.77.26.1-3.9140.0596.640.236.0600.9
1968140.05.96.2-1.2138.4600.931.737.3595.3
1969138.43.46.54.1139.5595.322.638.5579.5
1970139.520.57.16.8159.7579.5112.740.4651.8
1971159.75.97.0-6.5152.1651.828.439.9640.4
1972152.13.76.5-1.4147.9640.421.740.2621.8
1973147.94.27.651.1195.7621.822.939.6605.1
1974195.77.68.338.2233.1605.126.238.1593.2
1975233.15.110.750.3277.8593.220.436.4577.2
1976277.88.415.766.6337.1577.218.236.0559.5
1977337.121.017.9-17.6322.6559.540.836.3564.0
1978322.613.818.421.5339.5564.027.337.3554.0
1979339.523.521.656.7398.1554.041.537.9557.6
1980398.133.927.243.5448.3557.645.038.3564.3
1981448.331.126.3-73.7379.4564.332.638.0558.9
1982379.443.943.6-94.5285.2558.926.737.1548.6
1983285.268.768.1314.7600.6548.628.836.0541.3
1984600.686.374.5128.9741.3541.339.438.1542.7
1985741.362.162.3-146.7594.4542.740.437.6545.5
1986594.433.846.4-110.2471.6545.530.336.7539.1
1987471.636.836.0-34.8437.5539.137.136.4539.8
1988437.516.417.5-65.3371.1539.825.536.6528.7
1989371.120.616.935.1409.9528.734.135.7527.1
1990409.929.122.454.6471.2527.138.835.7530.3
1991471.219.624.214.0480.6530.325.035.6519.7

Table A.2