The bar chart illustrates the level of oil production in 6 countries from 1990 to 2010. The corresponding data is given in millions of barrels.

The bar chart gives information about the level of oil production in six different countries over the period from 1990 to 2010. In general, during this period of time, almost all countries experienced a noticeable increase of oil production, whereas only one country recorded a decline over the period. During the period from 1990 and […]

The bar chart shows levels of oil production in 6 countries from the Middle East during the period 1990-2010. It can be seen straight away that Saudi Arabia has consistently produced much larger amounts of oil than its neighbouring countries, while Qatar has done the opposite. In 1990, Iran had produced approximately 3 million barrels […]