The provided pie charts illustrate units of electricity produced by fuel source in Australia and France in 1980 and 2000.
Overall, coal production in Australia remained the main source over the twenty-year period, while France witnessed a sharp increase in the production of nuclear power. In addition, both countries experienced a rise in total number of units.
On the one hand, in Australia, coal accounted for the highest percentage of electricity production in 1980, at about 50 units. In 2000, it held on its leading position, but with a moderate rise: 130 units. Furthermore, the production of oil and natural gas, showing 10 and 20 units at the beginning, had become equal to each other, and saw a significant decrease (2 units each).
On the other hand, the number of nuclear power units in France dramatically went up by 111 units in 2000. Coal production remained steady at 25 units, showing no changes at the end, compared with the beginning. In addition, it is clear that both natural gas and hydro power productions witnessed the same index in 2000: 2 units each.