The diagram illustrates the production levels of Petroleum, Coal and Natural Gas for a country over the period of 20 years, from 1981 to 2000. Units are measured in tonnes.
Overall, instead of obvious fluctuation of production level, Petroleum remained the highest level of fuel production in the whole period. However, Coal went through a steady decline over the time. Whereas, Natural Gas started rising sharp after quite a long period of stagnant level of production. Significant features are discussed in the following paragraphs.
Though its production went through ups and downs, Petroleum was always the largest level of fuel production comparing the other two. Producing 80 million tonnes a year, Coal was the second major fuel production in 1981. Though the production level of Petroleum always kept fluctuating between 100 and 120 million tonnes, Coal experienced a steady decline over the period. Eventually in 2000, it ended up with producing the lowest level among the three major fuels.
On the other hand, Natural Gas never experienced decline in this whole period, though it started 3rd in 1981 and passed a long stagnant production level. Bisecting Coal at 50 million tonnes, Natural Gas started increasing sharp and remained the only rising fuel at the end of the period. Finally, instead of major fluctuations, Petroleum remained at the highest level of production, Coal experienced a steady decline and only Natural Gas was rising at the end of the period. "
The diagram illustrates the
production
levels
of
Petroleum
, Coal and
Natural
Gas
for a country over the
period
of 20 years, from 1981 to 2000. Units
are measured
in tonnes.
Overall
,
instead
of obvious fluctuation of
production
level
,
Petroleum
remained the highest
level
of
fuel
production
in the whole
period
.
However
, Coal went through a steady
decline
over the time. Whereas,
Natural
Gas
started
rising sharp after quite a long
period
of stagnant
level
of
production
. Significant features
are discussed
in the following paragraphs.
Though its
production
went through ups and downs,
Petroleum
was always the largest
level
of
fuel
production
comparing the other two. Producing 80 million tonnes a year, Coal was the second major
fuel
production
in 1981. Though the
production
level
of
Petroleum
always
kept
fluctuating between 100 and 120 million tonnes, Coal experienced a steady
decline
over the
period
.
Eventually
in 2000, it ended up with producing the lowest
level
among the three major fuels.
On the other hand
,
Natural
Gas
never experienced
decline
in this whole
period
, though it
started
3rd in 1981 and passed a long stagnant
production
level
. Bisecting Coal at 50 million tonnes,
Natural
Gas
started
increasing sharp and remained the
only
rising
fuel
at the
end
of the
period
.
Finally
,
instead
of major fluctuations,
Petroleum
remained at the highest
level
of
production
, Coal experienced a steady
decline
and
only
Natural
Gas
was rising at the
end
of the
period
.
"