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. Write at least 150 words. You should write at least 150 words.

The line graph provides information on the

production

of common fuels in Britain over a 20-year period, starting in 1981.

Overall

, the graph clearly shows that the

production

levels of petroleum and natural gas experienced upward trends,

while

coal

production

decreased over the given period. In the beginning, in 1981, petroleum had the highest

energy

units

produced, at approximately 90. It was closely followed by coal, with 80

energy

units

. Both fuels'

production

fluctuated until 1996.

While

petroleum experienced minimal increases and decreases, reaching around 140

energy

units

, coal

production

slightly declined and ended at nearly 35

energy

units

, making it the least produced fuel by 2000. Regarding natural gas, it

initially

had the lowest

production

levels, with just under 40

energy

units

. It remained relatively stable for a decade.

However

, after that period, natural gas

production

in the UK increased significantly, peaking at about 100

energy

units

, surpassing coal and securing the second-highest position.