The line chart illustrates the number of enquiries received by the Tourist Information Office in a particular city over a six-month period in 2011, classified by three different methods: in person, by telephone, and by letter or email.
Overall, the number of enquiries made in person and by telephone increased steadily, whereas those sent by letter or email declined throughout the period. By June, direct enquiries had become the most common method.
In January, the most popular way to contact the office was by telephone, with around 900 enquiries, followed by letter/email (about 750), and in-person enquiries (approximately 400). Over the following months, in-person enquiries rose sharply, surpassing both other methods in April, and eventually peaking at over 1800 in June.
Telephone enquiries showed a slight decline in February but recovered gradually from March onwards, reaching around 1600 by the end of the period. In contrast, the number of enquiries by letter or email fell consistently, dropping from roughly 750 in January to just under 400 by May, where it remained unchanged in June.