You should spend about 20 minutes on this task. 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. You should write at least 150 words.

The line graph illustrates data regarding the production levels of three distinct main fuels in the UK from 1981 to 2001.

Overall

, it can be seen that the

energy

units

of coal experienced an apparent downward tendency,

while

the figure for

petroleum

and natural gas showed a noticeable increase throughout the period. Notably, the manufacturing of

petroleum

contributed to the most

energy

units

among the three fuels for 20 years. Looking at the diagram in more detail, in 1981, nearly 90

energy

units

of

petroleum

were produced in the UK, which was approximately 10

energy

units

more than that of coal. Over the following decade, the production level of

petroleum

increased first by about 50

energy

units

and

then

fell to around 100

energy

units

,

whereas

the counterpart of coal decreased first by 42

energy

units

and

then

rose to almost 56

energy

units

.

In addition

, the manufactured natural gas remained relatively stable, with the amount being 40

energy

units

for ten years.

According to

the graph, the number of the produced

petroleum

went up from 100

energy

units

in 1991 to 140

energy

units

in 2000.

In contrast

, coal, whose production level ranked second among these fuels until 1991, saw a continuous decrement of nearly 20

energy

units

at the end

of the period. Simultaneously, the corresponding figure for natural gas witnessed dramatic growth, with the number ascending to 100

energy

units

in 2000.