The line graph provides a breakdown of the number of inquiries received by the Tourist Information Office in a city over a six-month period in 2011.
It is obvious that in-person inquiries increased the most between the months of March and April, whereas telephone inquiries experienced the greatest rise from the months of April to May.
Between the months of January and June, in-person inquiries maintained an increase in number, consistent with the trend observed for telephone inquiries during this time period. Both the in-person and telephone inquiry methods shared a similar pattern in inquiry numbers, with the greatest inquiry rise between the months of April and June, as indicated by the sharp slopes on the respective line graphs.
Comparatively, the inquiry method of letter and email experienced a gradual decrease in number for the reported months of January to May. However, during the months of March to April and May to June, respectively, both the telephone and letter and email inquiry methods maintained a steady inquiry number, as indicated by the plateaus on their respective line graphs. The Tourist Information Centre received the greatest number of inquiries in the month of June.