The given line graph demonstrates how many outputs produced from three main kinds of fuel (petroleum, coal, natural gas) in the UK from 1981 to 2000.
Overall, it is obvious that despite some fluctuations, there was a upward trend in the manufacturing levels of petroleum and natural gas in the UK, while a decline was seen in the coal. Additionally, petroleum was a common fuel to created products throughout the period.
About 90 production was made from petroleum in 1981; following, this figure experiencing a noticeable fluctuation in many next years and peaked at nearly 150 in 2000. Similarly, the number of outputs created from natural gas started at roughly 40 in 1981; after which this figure witnessed a minimal rise to just over 40 in 1991 before growing sharply to 100 in 2000.
In 1981, products produced from coal stood at 80, this data then reached to 60 in 1986 after a considerable oscillation. Afterwards, a stable remain at 60 was seen in this figure before reducing significant to approximately 40 at the end of the given period.