The diagram below shows the number of landline telephones per 1000 people in different countries over a five-year period.

The bar chart illustrates the oil

production

of

OPEC

and

non-

OPEC

countries over 40

years

. The

production

of oil drastically increased from 11

million

between 1980-2000 to its highest of 19

million

barrels per day in the first decade of the 21st century.

However

, The

production

reduced slightly by about 1

million

barrels per day over the

next

10

years

.

Also

, the

production

saw a steep shift from

Non-

OPEC

dominance in the

last

decade of the 20th century to

the

Correct article usage

apply

show examples

OPEC

dominance in the first 20

years

of the 21st century of which the Middle East was the largest producer. The total amount produced by

OPEC

countries was only 3

million

coming from the Middle East in the period between 1980 - 2000 in comparison to

non-

OPEC

with 8

million

barrels.

However

, the numbers changed significantly over the

next

20

years

with

OPEC

countries producing 13

million

and

non-

OPEC

producing only 5

million

in the first 10

years

and

OPEC

producing 18

million

and

non-

OPEC

only producing 2

million

in the

next

decade. In conclusion,

Overall

oil

production

saw a steep increase from the 1980s to the early 2000s post which it stabilized.