The line graph indicated the information about the number of questionnaires collected from Tourist Information office in a city based on individual, letter/email and telephone by first 6 months in 2011.

The line chart illustrates that the Tourist Information office did questionnaires in person, by letter/email and by telephone in a city from January to June 2011.

Overall

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, January saw an increasing trend by individuals and by telephone,

while

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this

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by letter or email remained the same in the first three months,

then

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it dropped to the lowest in May and remained the same level the next

month

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. During the first

month

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of 2011, the survey by phone was the highest with about 900, compared to the figure by letter or email with just a bit lower 800 and in person about 400. The number in person increased dramatically until the middle of March when reaching the highest among these three ways.

This

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figure was about 1900 in June.

By contrast

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, the number by telephone dropped about 100 during the first

month

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when it increased largely to 900 in June.

Although

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the number means of letters/emails stayed the same from January to March, it decreased about two times until May when it stayed the same the next

month

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.