Table 1.5.—Value of the Resource, Additions, and Depletion of Oil, Replacement Cost Method

[Billions of current dollars]

Year	Opening stock	Additions	Depletion	Revaluation adjustment	Closing stock (1+2-3+4)
	(1)	(2)	(3)	(4)	(5)
1947		1.3	1.0		14.2
1948	14.2	3.1	1.6	3.5	19.2
1949	19.2	2.1	1.2	-2.4	17.7
1950	17.7	1.9	1.4	.1	18.3
1951	18.3	2.7	1.4	-2.5	17.2
1952	17.2	1.6	1.3	-.8	16.7
1953	16.7	1.8	1.2	-.8	16.4
1954	16.4	1.8	1.4	3.1	19.8
1955	19.8	2.2	1.9	3.4	23.6
1956	23.6	2.2	1.9	-.4	23.6
1957	23.6	1.8	2.0	.9	24.4
1958	24.4	2.3	2.0	1.6	26.3
1959	26.3	3.2	2.1	-.5	26.7
1960	26.7	2.1	2.1	.2	26.9
1961	26.9	2.1	1.9	-2.7	24.3
1962	24.3	1.7	1.9	-.2	23.9
1963	23.9	1.8	2.1	.6	24.2
1964	24.2	2.3	2.3	2.4	26.6
1965	26.6	2.8	2.4	1.3	28.2
1966	28.2	2.8	2.7	1.0	29.4
1967	29.4	2.8	2.8	-.1	29.2
1968	29.2	2.1	2.7	-1.7	26.9
1969	26.9	2.2	3.4	6.5	32.3
1970	32.3	11.9	3.3	-1.5	39.4
1971	39.4	2.2	3.2	-1.3	37.2
1972	37.2	1.4	2.9	-1.7	34.0
1973	34.0	1.9	2.8	9.2	42.3
1974	42.3	2.0	3.1	7.7	49.0
1975	49.0	1.2	2.6	-4.3	43.4
1976	43.4	2.0	4.8	18.1	58.7
1977	58.7	7.9	6.3	14.1	74.4
1978	74.4	6.7	7.8	21.7	95.1
1979	95.1	4.8	8.7	37.2	128.4
1980	128.4	10.9	10.9	51.1	179.5
1981	179.5	11.9	13.2	4.5	182.6
1982	182.6	12.2	23.8	66.8	237.9
1983	237.9	33.5	33.4	53.8	291.8
1984	291.8	40.0	33.2	-5.4	293.2
1985	293.2	28.9	28.6	-73.9	219.5
1986	219.5	11.7	22.1	-42.4	166.8
1987	166.8	18.2	16.2	-49.0	119.8
1988	119.8	10.0	11.6	.5	118.7
1989	118.7	9.5	11.2	8.4	125.4
1990	125.4	8.7	9.7	-14.2	110.2
1991	110.2	3.3	8.0	-27.6	77.8