The given lines graph illustrates the quantity of complaints receiving from department of a sole airline from a period of six months starting from Jannuary to June in 2009
On the whole, while the figure for complaints to Airline by telephone or in person witnessed an upward trend, the opposite was record to by email or fax. In addition, that of complainters gave responds in person was the highest at the end of the period shown.
In terms of the first three -months, the number of complaints in person and by telephone was about 400 and 900, respectively. In the following month, there was a slight increase in the figure for complaints through telephone to just above 1000, followed by a stable trend, then this figure boomed to 1600 at the end of given time. Similarly, that of **criticism** directed to person climbed consistently from the beginning to the final examined month and peaked at roughly 1900
Regarding to dissatisfaction obtained by email or fax, the quantity of this type of contract was nearly 800 initially. Though this figure decreased unconsiderably by under 100 in the next three months. The next three-month period saw a marginal drop to approximately 390, accompanied by an unchange trend until June in 2009, which was the lowset figure in that month.