Band 9: The graph below shows the number of enquiries received by the Tourist Information Office in one city over a six-month period in 2011. Summarize the information by selecting and reporting the main features and make comparisons where relevant.

The line graph illustrates the number of information requests received by a tourist office in the United Kingdom through three methods: in person, by letter/email, and by telephone from January to June.

Overall, in-person enquiries experienced the most substantial increase and became the dominant method by the end of the period. In contrast, requests made by letter or email declined steadily and remained the least common throughout.

At the beginning of the period, telephone enquiries were the highest, at around 850 in January. This figure rose gradually over the next months, reaching approximately 1600 in June. Letter and email enquiries started at roughly 750 in January but fell consistently, ending at just under 400.

In-person enquiries showed a striking upward trend. They began at about 450 in January, overtook the other methods by April, and peaked at nearly 1900 in June, becoming the most frequent method of contacting the tourist office.