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.

The line graph details the

production

of three different fossil fuels in an unspecified country between 1981 and 2000. Looking at the graph from an

overall

perspective,

it is clear that

the

production

of

petroleum

and coal followed an erratic pattern,

whereas

natural gas stayed at the same

production

level for most of the period. Among

three

Correct article usage

the three

show examples

types of fuels researched,

petroleum

always headed the list of

production

levels. In 1981, nearly 100

tonnes

of

petroleum

was produced, outstripping the

production

of coal (80

tonnes

) and natural gas (40

tonnes

). In 1983, the figure for

petroleum

grew sharply by 30

tonnes

and remained at the same level for 5 years before a pullback to around 95

tonnes

in 1989. It

thereafter

underwent a noticeable recovery, albeit

slight

Change preposition

with slight

show examples

fluctuations, to reach 120

tonnes

in 2000. At the same time, coal

production

plateaued until 1984, which was followed by a precipitous decline to 50

tonnes

in 1985. Having jumped back to above 70

tonnes

in 1987, the amount of coal produced still steadily dropped, hitting a low of less than 40

tonnes

at the end

of the period. Despite staying relatively stable at 40

tonnes

until 1994, the figure for natural gas surged to 85

tonnes

in 2000.