The chart below shows the total number of minutes in billion of telephone calls in the UK divided three categories from 1995 from 2002.

The

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bar graph illustrates the figure for the total

minutes

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of telephone calls in the UK between 1995 and 2002. The units were measured in

billion

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minutes

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and divided into three types, which were local

lines

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, national and international

lines

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, and mobiles.

Overall

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, it can be clearly seen that the

minutes

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of local

lines

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reached a peak usage in 1999,

whereas

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national and international

lines

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and mobiles, both have an increasing number. In terms of local line, it was the highest

minutes

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in 1995 with the total

minutes

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at just above 70

billion

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. Later, the figure increased gradually and reached a peak in 1999 at precisely 90

billion

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.

However

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, in the following year, the trend experienced a fall and ended at exactly the same number as in 1995. Regarding the national and international line, stood at nearly 38

billion

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in 1995, and went up moderately throughout the given period until finished at just above 60 in 2002. Meanwhile, the biggest growth witnessed by mobiles compared with , in 1995 the number began at approximately 5

billion

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and rocketed by 40

billion

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to 45

billion

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in 2002.