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

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

Overall

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

whereas

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

also

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

, which was 500

surveys

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

surveys

.

Thereafter

, there was a moderate elevation in the

telephone's

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telephone

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statistics, finishing at about 1600

surveys

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

at the end

. Turning to the remaining method, almost 800

surveys

were accumulated via letter/email, ending at about 400

surveys

and levelled off towards the end.