The line chart illustrates the quantities of various fuels produced in the UK starting from 1981 to 2000.
 
Overall
, it can be observed that, when compared to others  petrol extraction was the highest, starting from 1981. Despite Linking Words
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, there were fluctuations in the quantity. Linking Words
In addition
 to Linking Words
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,  Natural gas production grew drastically after 1991. During the same time, an opposite trend was seen in the case of coal.
 On closer examination, it can be witnessed that, between 1981 and 1991,  petrol production went from 80 to 140 in the first half of the period, and Linking Words
then
 later it reduced to 100. Linking Words
However
, after 1991, it again increased, and by the end of 2000, Linking Words
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 figure was crossing 140. Linking Words
Apart from 
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, from 1981 to 1991, less than 50 units of Natural gas were extracted, but after that, it grew exponentially, and Linking Words
as a result
 by 2000 Linking Words
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 was close to 80 units. Linking Words
Conversely
, after 1991, the coal production went down by 20 units. Linking Words
Moreover
, from 1981-1986, Linking Words
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 number was varying between 80 to 40.Linking Words