The chart below gives information on the average cost of a monthly plan from four different mobile phone providers in a European country, between January and September 2012, measured in euros.

The line graph illustrates the average fee of monthly mobile plans for four different types of cellular companies in a European country from

January

to September 2012.

Overall

, all mobile phone providers' costs experienced an upward trend except Sim Tx.

Also

, the Alpha was the least popular provider at the beginning of the period and it became the most popular one

at the end

. In terms of, Provider Demo,

initially

there was an upward trend from

January

to July at about 15 to 25 respectively. In between these two months, it had some fluctuations and

at the end

, it was about 24 as the lowest cost.

In addition

to that,

the

Correct article usage

apply

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Lex

rose

Verb problem

raised

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its cost gradually until September approximately from 12 to 17

while

Alpha

has

Wrong verb form

had

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moderate growth from

January

at about 5 to 6 and

then

dropped slightly to its initial value

on

Change preposition

in

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month

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the month

a month

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of June.

However

, after June it significantly increased to the high point outraced Demo

at the end

. The figure Sim Tx, in

January

, spent around 9 Euros and

then

rose marginally to around 14 with some fluctuations during 5 months and after June plummeted to approximately 8 in September.