The graph below shows the production levels of the main kinds of fuel in the UK between 1981 and 2000. Summarize the formation by selecting and reporting the main features and make comparisons where relevant.

The line diagram illustrates data about the production levels of the main carburants in the United Kingdom between 1981 and 2000.

Overall

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, an increasing trend is observed for natural gas,

as well as

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petroleum even though it suffered variations all over the years; oppositely, coal decreased.

Firstly

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, oil climbed sharply between 1981 and 1984, and from 1992 to 1995,

also

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experienced 4 years of stability until 1988 when gradually descended to 100.

In addition

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, from

then

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to 2000, it grew with little variation.

Secondly

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, carbon slowly dipped until 1983 when suddenly plummeted, reaching the nadir in 1984,

then

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rose for the following two years. After it remained steady until 1989 and

then

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started diving again.

Nevertheless

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, from 1996 leveled off at 40.

Lastly

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, natural gas steadily rose from less than 40 to 100; there is only a period that dramatically surged between 1991 and 1994. To summarize,

while

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oily and solid fuel production increased, solid ones dove.