world oil production (from K. Deffeyes)
pre 1930 total production 17 gigabarrels 
year    kb/da  Gigabarrels/year
1930	3644	1.33
1931	3879	1.42
1932	4034	1.47
1933	4221	1.54
1934	4521	1.65
1935	4758	1.74
1936	4971	1.81
1937	5223	1.91
1938	5354	1.95
1939	5618	2.05
1940	5676	2.07
1941	5964	2.18
1942	5682	2.07
1943	6124	2.24
1944	6971	2.54
1945	7002	2.56
1946	7424	2.71
1947	8167	2.98
1948	9236	3.37
1949	9198	3.36
1950	10307	3.76
1951	11574	4.22
1952	12232	4.46
1953	13026	4.75
1954	13534	4.94
1955	15249	5.57
1956	16330	5.96
1957	17137	6.25
1958	17514	6.39
1959	19002	6.94
1960	20580	7.51
1961	21954	8.01
1962	23794	8.68
1963	25519	9.31
1964	27755	10.13
1965	29592	10.80
1966	32129	11.73
1967	34586	12.62
1968	37686	13.76
1969	40358	14.73
1970	44237	16.15
1971	47284	17.26
1972	48934	17.86
1973	54867	20.03
1974	56287	20.54
1975	53048	19.36
1976	56351	20.57
1977	58266	21.27
1978	58390	21.31
1979	60227	21.98
1980	57358	20.94
1981	53349	19.47
1982	50446	18.41
1983	50262	18.35
1984	51160	18.67
1985	50909	18.58
1986	53172	19.41
1987	53204	19.42
1988	54875	20.03
1989	57300	20.91
1990	57760	21.08
1991	57414	20.96
1992	57210	20.88
1993	57125	20.85
1994	57812	21.10
1995	58981	21.53
1996	60405	22.05
1997	62384	22.77
1998	63124	23.04
1999	61364	22.40
2000	63418	23.15
2001	62772	22.91
2002	60947	22.25
2003	64217	23.44
2004	66504	24.27
2005	66625	24.32