Band 7+: The pie charts indicate changes in the proportions of energy produced in a country from 1983 to 2003. Summarize the information by selecting and reporting the main features, and make comparisons where relevant.

The pie chart compares how much energy was generated by six different sources in a specific country between 1983 to 2003.

At first glance, it can clearly be seen that oil was the main source of energy production over the whole time period. While the amount of power produced by coal decreased considerably, this figure for the natural gas sector experienced a significant increase.

To begin, in 1983, 42% of the total power was generated by oil, which was far higher than other sources. However, over the next two decades, this figure followed a decreasing pattern at 38%, but was still higher than other sectors. An opposite trend can be seen for nuclear power, beginning with 20% in 1983, and rising to 24% in 2003.

According to the pie chart, in 1983, only 11% of the total energy was produced by natural gas, but by 2003, this figure had almost doubled. An opposite scenario can be seen for coal sector, with 23% of energy generation in 1983, and only 13% in 2003. It is also worth mentioning that over the whole time period, hydropower was responsible for only 4% of the energy produced in the country.