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# Long description

A graph with the vertical axis labelled annual crude oil production/billion barrels and running from 0 to 35, in intervals of 5. The horizontal axis runs from1930 to 2050, in intervals of 10 years. The curve runs gently upwards from a value of about 1 billion barrels in 1930 to 3 billion barrels in 1950, then rises more steeply to about 20 million barrels in 1970. After a peak around 1979 at 22 million barrels, the curve falls back to 20 million barrels in 1981 and then resumes its upward trend to reach a rounded peak at about 30 billion barrels around 2010. After that, the curve falls steadily to about 13 billion barrels in 2050.