The line graph illustrates the manufacture of primary fuel types in the UK from 1981 to 2000.
Overall
, it is clearly indicated that all three kinds experienced an increase over the entire Linking Words
period
, with the exception of coal, which underwent a perceptible decline.
The petroleum figure, which stood at approximately 90 Use synonyms
units
in 1981, rose to 140 Use synonyms
units
in 1986, before going down to 100 Use synonyms
units
in 1991. After that, it constantly increased over the rest of the Use synonyms
period
and reached 140 Use synonyms
units
one more time.
The figure for coal, which accounted for 80 Use synonyms
units
, underwent a significant decrease and amounted to almost 40 Use synonyms
units
, after being stable for a short Use synonyms
period
. Before experiencing a decreasing tendency for the whole Use synonyms
period
, it grew to 60 Use synonyms
units
in 1986. Natural gas remained stable till 1991, and slightly increased for the rest of the Use synonyms
period
.Use synonyms
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