The line graph illustrates how many enquiries were made to a Tourist information office in one city by phone, letter and in person from January to June in 2011

The line graph illustrates how many enquiries were made to a Tourist information office in one city by phone, letter and in person from January to June in 2011.
In January 2011, more than 800 enquiries were received by letters or email while enquiries by telephone were less than 800. In contrast, the least amount of enquiries was received in person, the number of enquiries in person soared significantly over the next six month and in June, the highest number of enquiries was in person accounting for more than 1800. Surprisingly, the number of enquiries by letter and email dropped gradually over the next two month which was followed by a sharp decrease in three months becoming the lowest in June, reducing to less than 400. The number of enquiries by telephone slightly slipped in February which was followed by marginal rise in the couple of months. Over the next three months, there was a significant increase in telephone enquiries which rose to 1600.