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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 showcased line graph illustrates the production levels of the main kinds of fuel in the UK over a period of 19 years, from 1981 to 2000.
Overall, there are 3 types of main kinds of fuel such as petroleum, coal and natural gas. Petroleum and natural gas had a noticable upward trend throughout all the years, while coal had a dramatic reduction.
From the given line graph it is evident that petroleum was approximately 90 million tones in 1981. However, in later 5 years it dramatically increased to 140 million tones, then waved and declined to 100 million tones, and in the 2000 it remained 140 million tones. Coal was 80 million tones in production, following next ten years had ups and downs. In 2000 it delined to almost more than half to 38 million tones. In addition, natural gas kept unchaned during ten years with about 40 miilion tones enregy. However, it rose to about 100 million tones in 2000.
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