The provided bar chart illustrates information regarding energy production from four different sources in a country over a period of 20 years, spanning from 2000 to 2020. Figures are measured in million tonnes of oil equivalent.
Overall, it is noticeable that energy production from gas and renewables grew dramatically, whereas the opposite was true for coal and nuclear power throughout the period. In addition, gas remained the most predominant feature during the entire timeframe by the end of the period, taking over coal.
Looking at the details in more depth, in 2000, the figure for gas stood at 45 million tonnes. Following this, this number experienced a sharp increase to reach 72 million tonnes in 2020. Conversely, coal commenced at a higher point of 65 million tonnes, before dropping steadily to 38 million tonnes by the end of the given period.
Turning to the remaining categories, renewable energy hovered at approximately 15 million tonnes in the initial year. Over the next 20 years, it rose significantly before peaking at 64 million tonnes. Meanwhile, a different pattern was observed in nuclear energy, which registered a gradual decline from 30 million tonnes to 26 million tonnes.