The line chart illustrates the number of enquiries received by the tourist information office in a specific urban area over a six-month period in 2011.
It is clearly observed that the number of enquiries made by telephone peaked at over 800 in January, then declined slightly to 800 in February. Subsequently, the count increased to 1,000 in March and remained stable until April. Notably, there was a significant and sudden rise in enquiries, which escalated from 1,000 to 16,000 between April and June.
Interestingly, the number of enquiries made by letter or email started just below 800 in January, then smoothly decreased to around 700 by March. This category then experienced a steep drop to about 400 in May and remained at that level until June.
The number of in-person enquiries at the visitor information office was approximately 400 in January, and it increased significantly over the six-month period, reaching a peak of nearly 1,900 by June.
In conclusion, it is evident from this analysis that the number of enquiries received by the tourist information office via telephone and in person exhibited an upward trend, while those received by letter or email showed a declining trend.