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

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of

OPEC

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and

non-

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OPEC

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countries over 40

years

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. The

production

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of oil drastically increased from 11

million

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between 1980-2000 to its highest of 19

million

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

However

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, The

production

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reduced slightly by about 1

million

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barrels per day over the

next

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10

years

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.

Also

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, the

production

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saw a steep shift from

Non-

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OPEC

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dominance in the

last

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decade of the 20th century to

the

Correct article usage

apply

show examples

OPEC

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dominance in the first 20

years

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

OPEC

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countries was only 3

million

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

non-

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OPEC

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with 8

million

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barrels.

However

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, the numbers changed significantly over the

next

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20

years

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with

OPEC

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countries producing 13

million

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and

non-

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OPEC

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producing only 5

million

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in the first 10

years

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and

OPEC

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producing 18

million

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and

non-

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OPEC

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only producing 2

million

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in the

next

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decade. In conclusion,

Overall

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oil

production

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