The line graph illustrates the number of enquiries received by a tourist information office through three different channels—in person, by telephone, and by email or letter—between January and June 2001.
Overall, the data shows a clear divergence in communication preferences. Enquiries made in person and by telephone grew substantially, whereas written correspondence via email or letter became increasingly less popular throughout the first half of the year.
In January, telephone enquiries were the most frequent at 800, followed by email/letter at 600, and in-person visits at 400. However, in-person enquiries rose sharply, overtaking email/letter in February and telephone enquiries in March. By June, in-person visits reached a peak of 1,200. Similarly, telephone enquiries fluctuated initially but climbed steadily from 800 in March to 1,100 by the end of the period.
Conversely, the number of enquiries by email or letter remained relatively stable at approximately 600 until March, before experiencing a consistent downward trend. This figure dropped to 480 in April and continued to fall, reaching a low of 200 by June, which was the least used method of communication by the end of the six months.