Band 7+: Chart A below shows the rate of oil consumption (in millions of barrels) in a small country from 1950 to 2010. Chart B shows the number of people employed in the oil industry in that country, and also the rate of unemployment throughout the country over the same time.

The charts show the percentage of oil consumption in one country between 1950 and 2010, plus the numbers of local workers in that industry, and the rate of unemployed residents as well.

Overall, the figures of used oil barrels have increased steadily over the given period. In the first three decades, the rate of unemployment residents had remained high, until the consumption of oil barrels substantially climbed, along with the numbers of working residents.

Regarding the consumption of barrels, from 1950 to 1970 the figures fluctuated around 20 million. However, during the following decades, the numbers surged drammatically, starting at 20 million and rising to 40 million, before levelling off slightly in 2000. After a decade, the numbers finally peaked at around 50 million.

Turning to the rate of employment, it had remained at around 1.2% between 1950 and 1970, then growing gradually to 3.1% by the end of the period. Conversely, between first three decades, the percentage of unemployed individuals stayed high, after which they declined steadily by 2.4%, in 2010.