The two pie charts illustrate the percentage of energy production from five different sources in 1995 and 2005.
In 1995, coal accounted for the largest portion of energy production at 29.80%, closely followed by gas and petroleum, which were 29.63% and 29.27%, respectively. Conversely, nuclear energy contributed a relatively small proportion, at 6.40%, while other sources made up just 4.90%.
By 2005, gas became the dominant source, slightly increasing to 30.31%, while coal also rose marginally to 30.93%. In contrast, petroleum significantly dropped to 19.55%. Meanwhile, nuclear energy grew by 3.7% to 10.10%, and energy from other sources nearly doubled to 9.10%.
Overall, gas and coal remained the most significant sources of energy in both years, while the production of petroleum declined noticeably. Additionally, there was a sharp increase in the use of nuclear and other alternative energy sources over the 10-year period.