The graph below shows the production levels of the main kinds of fuel (measured in tonnes) in the UK between 1981 and 2000. Summarise the information by selecting and reporting the main features, and make comparisons where relevant.

The graph illustrates the amount of various types of fuel produced in the UK from 1981 to 2000 and measures it in

tonnes

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.

Overall

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, the manufacturing of petroleum has an upward trend with a noticeable oscillation in 1991.

Although

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natural gas has a similar rising pattern, it was growing steadily throughout the timeframe. In terms of coal, there was a downward trend with an insignificant fluctuation. In detail, approximately 90

tonnes

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of petroleum were produced in the first year and it sharply increased up to 140 in 1986. From

this

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point, it decreased to 100

tonnes

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before receding to the previous level in 1994. From

this

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year onwards the manufacture of petroleum-made fuel rose continuously and it reached its peak at about 150 in 1999. In terms of natural gas, it started from just below 40 and constantly kept increasing to a hundred by the end of the timeframe, when

this

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number marked a peak of the gas industry. Coal represented a dramatic drop from 80 to about 38 in 1984. The coal industry experienced rose sharply up to 60 and plateaued until 1989. From 1989 onwards, the amount of coal manufactured continued to decrease with a small fluctuation and comprised 38

tonnes

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in the final period.