The two pie charts present a comparative analysis of energy production sources in the years 1995 and 2005, expressed in percentage terms.
Overall, while coal, gas, and petroleum remained the primary energy sources across both years, coal emerged as the most significant contributor by 2005, highlighting a shift in energy reliance.
In 1995, coal constituted 29.80% of total energy production, closely followed by gas at 29.63% and petroleum at 29.27%. Nuclear energy contributed a marginal 6.40%, while other sources accounted for the least at 4.90%. This distribution indicates a relatively balanced reliance on fossil fuels, with a slight preference for coal and gas over petroleum.
By 2005, a slight increase in the proportion of energy from coal was observed, which rose to 30.93%. Gas also experienced a modest uptick to 30.31%. In contrast, petroleum’s share witnessed a significant decline to 19.55%, while nuclear energy’s contribution increased to 10.10%, reflecting a growing diversification in energy sources. Additionally, other sources saw an increase to 9.10%, indicating a gradual shift towards alternative energy options.