The chart below illustrates the percentage distribution of energy sources used in a country from 1990 to 2020.There are four types of energy: Coal,natural gas,Nuclear power and wenewable energy.
Overall, the Coal showed thr highest results throughtout the period, while renewable energy had a significant increase between 2010 and 2020.In contrast, Coal and Natural gas were at the top throughtout the period, while Nuclear power and renewable energy were at the least.
In 1990 the Coal energy was at the top and 40% used this type of energy, and the percentage was sharply incresed to 45% in 2010, but after that it is slightly decreased to just under 40%.The one third used Natural gas in 1990, but then they percentage was slightly decline to just over 20%, in 2010 the percentage was increased to 25% and in 2010 it is go down to just under 20%.
By 2020, the use of renewable energy doubled to 20%, reflecting the highest growth among all sources. Coal remained the largest contributor, but its percentage fell slightly to 42%. The usage of natural gas declined further to 22%, and nuclear power dropped minimally to 16%.
