I couldn't give you the exact percentage. We do know that a good many of them stay in Canada, but I wouldn't venture a figure on that today.
When will we get there? Our engineering schools have the capacity to grow. Take my own faculty, for example. In one year, we went from 3,100 to 3,700 students. It's clear in our case that we're nearing our limit and won't be able to sustain more growth, without an injection of human capital, money and physical resources.
If we look at what's happening in Canada right now, we see that some universities are in the process of expanding their engineering schools. The most recent example of that is York University, in Toronto. They have a very ambitious expansion plan for their engineering school, and obviously that will increase capacity. It will go from 70,000 undergraduates to 75,000 or 80,000.
However, it is important to make sure that people are being trained in high-demand sectors. And that means looking closely at the labour market to identify and target those sectors where trained graduates could have rewarding careers.