The pie charts provide information about the proportion of three different sources of electricity in four countries (India, Sweden, Morocco, Vietnam) from 2003 to 2008.
Overall, it is clear that Vietnam and Morocco did not use any nuclear power for electricity production. It can also be seen that while fossil fuels were the largest source of electricity supply in Vietnam and India, they only accounted for a small proportion in Morocco and Sweden during the examined years.
In Vietnam, just over half of the total amount of electricity was produced from fossil fuels, while the figure for Morocco was only 5%. The rest of electricity in both nations was produced from hydro power.
In terms of India, electricity from fossil fuels contributed 82% of the entire quantity of electricity produced, next came hydro power and nuclear power accounting for 14% and 4%, in order. Meanwhile, fossil fuels were only responsible for 4% of the total generated electricity in Sweden, with hydro power and nuclear power contributing 52% and 44%, respectively.