The line graph illustrates the number of enquiries received by a city’s Tourist Information Office over a six-month period in 2011, classified by three methods: in person, by telephone, and by letter/email.
Overall, enquiries made in person and by telephone increased significantly, whereas those sent by letter or email showed a steady decline. By June, face-to-face enquiries became the most common method.
In January, the Tourist Information Office received around 900 enquiries by telephone, making it the most popular method at the beginning of the period. This figure fell slightly in February before rising steadily to reach approximately 1,600 in June. In contrast, enquiries made in person started at a relatively low level of about 400 in January but increased sharply each month, peaking at nearly 1,900 by June.
Meanwhile, the number of enquiries sent by letter or email decreased throughout the period. Starting at roughly 750 in January, this figure declined gradually to around 350 by May and remained unchanged in June.
In summary, personal visits overtook other enquiry methods, while written communication became increasingly less popular.