The graph below shows the number of enquiries received by the Tourist Information Office in one city over a six-month period in 2011. Summarize the information by selecting and reporting the main features and make comparisons where relevant.

The chart illustrates how many

surveys

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were collected domestically across 3 specific methods in a particular metropolis during the first half of 2011.

Overall

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, the number of questionnaires received via letter/email dropped slightly,

whereas

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those via the rest observed rises of varying degrees, with the most pronounced growth being seen in direct interviews. It is

also

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reported that the vast majority of feedback was collected directly. Looking first at the numbers via telephone and in-person, the former commenced the period with around 900

surveys

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, which was 500

surveys

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more than the corresponding figure for the latter, at approximately 400

surveys

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.

Thereafter

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, there was a moderate elevation in the

telephone's

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telephone

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statistics, finishing at about 1600

surveys

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in Jun. Similar changes, but to a much greater extent, can be seen in the face-to-face

enquiries'

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enquiries

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data, with a fivefold increase to just shy of 2000

surveys

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at the end

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. Turning to the remaining method, almost 800

surveys

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were accumulated via letter/email, ending at about 400

surveys

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and levelled off towards the end.