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

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

while

this

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

then

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

month

. During the first

month

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

figure was about 1900 in June.

By contrast

, the number by telephone dropped about 100 during the first

month

when it increased largely to 900 in June.

Although

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

.