The provided line chart illustrates how many enquiries were received by the Tourist Information Office in one city in the first half of 2011.
Overall, except for letters or emails that witness a downward trend, other figures saw an opposite pattern. In addition, while the figure for telephone was the largest quantity, the figure for in-person was the biggest increase during the period.
At the start of the timeframe, among all figures, securing the top position was by telephone, with this figure being around 900. Closely below was the figure for letter/email, at approximately 750, which was 300 higher than the figure for in-person.
Thereafter, the number of questions sent by telephone recorded a marked increase to 1600 in June. The figure for in-person exhibited a similar pattern, but was stronger, jumping nearly fivefold in June. By contrast, the figure for letter/email witnessed a slight decline to about 400 at the end of the period.
