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The image shows a line graph detailing the production levels of petroleum, natural gas, and coal in the UK from 1981 to 2000 in energy units. In 1981, petroleum started above 90 units and increased to about 130 units by 1986, then decreased to around 100 units in 1991, rose to roughly 135 units in 1996, and slightly decreased to 125 units by 2000. Coal began at approximately 80 units in 1981, dropped to about 60 units in 1986, decreased sharply to 40 units in 1991, further declined to about 20 units in 1996, and remained constant towards 2000. Natural gas started at about 40 units in 1981, remained stable around 40 to 60 units through 1986-1991, then increased steadily, reaching about 100 units by 2000. Energy units indicated in million tonnes of oil.
Given the complexity of the image, the above description may not be entirely accurate.
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The graph illustrates the production levels of the main fuels in the UK between 1981 and 2000.
Overall, it can be seen from the graph that the production levels of petroleum was the highest compared to the other two kinds of fuels.
In 1981, petroleum showed the highest level of production among the other two kinds of fuel, which is about 90 energy units, followed by coal for around 80 energy units and natural gas for around 40 energy units. After experiencing the up and down, petroleum still produced the most energy units, with the number 140 energy units in 2000. By comparison, natural gas produced a much lower level, around 40 energy units in 1981. And it started to rise in 1991, it started to produce higher energy units than coal in 1992 and reached its peak of approximately 100 energy units in 2000. The energy units produced by coal decreased before it increased to 60 energy units, then it started to keep declining slightly until it reached the lowest point, approximately 30 energy units in 2000.
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