The given line chart compares and contrasts data about the number of enquiries transmitted to the Tourist Information Office in a specific city over the first half of 2011 via three types of media.
At first glance, it is evident that making enquiries in person and by telephone became the top-tier choices while letter and email enquiries became less popular over time.
The data indicates that the number of in-person enquiries witnessed the largest variation. In January, the figure was just above 400 and skyrocketed, surpassing other communication methods. This rising trend continued, peaking at around 1,900 in-person enquiries in June. Telephone enquiries started at about 900, being the highest figure in January. They slightly dipped in February, then recovered and rose consistently, reaching approximately 1,600 in June.
On the other hand, letter/email enquiries started at nearly 800, remained stable until March, then declined significantly to about 400 by June.
