The pie charts illustrate several ways of booking online English courses: arrival, pre-booked with agents, internet, and others in Australia, USA, and Canada between 2009 and 2010. According to the given figures, it can be clearly seen that each nation has their own different pattern of booking.
The pie charts can be separated into two different trends. To begin with the USA, the percentage of booking online English courses remained similar during the given period by approximately one-fourth for each method.
On the other hand, both Australia and Canada demonstrated a changing trend from 2009 to 2010. In Australia, the percentage of booking online English subject by internet and arrival gradually increased from 24% and 26% in 2009 to 39% and 30% in 2010 respectively. Following that, both pre-booking with agents and other dropped from 27% to 11% by agents and from 23% to 20% by other during the given period. Meanwhile, from 2009 to 2010 in Canada, the percentage of booking by arrival significantly declined from 45% to 22%. Similarly, booking by internet slightly decreased while both booking by other and agents became popular with 6% to 18% and 22% to 35% respectively.
To sum up, overtime, both internet and agents were the major methods for booking online courses.