There are a number of reasons. I believe there's a major shortage of pilots. I can give you an example. A few years ago, when the airline was going bankrupt, people who lost their jobs tried to find work at Transport Canada. That's no longer the case. When Skyservice went bankrupt, we didn't receive calls from individuals looking for work at the department. Fewer people are available. In addition, the hiring system for pilots takes a lot of time.
On April 15th, 2010. See this statement in context.