It's a very good question, and it's very hard to pin down what is happening there. There are a couple of things I could suggest that might have contributed to this.
One is that when new legislation, the Public Service Employment Act, was passed, it significantly tightened up casual employment. Casual employment had been 120 days, and it was tightened to 90 days. It was restricted to 90 days with really very little room for any kind of exception. That happened roughly in that time period when we saw the rise of the temporary help services.
There were also some changes, particularly in the national capital area, in ways to use the temporary help, which were actually broadening. One is that we have seen a phenomenon now whereby we have professional workers coming in as temporary help. There is a notion that temporary help is clerical and support staff, but about 37% of the people in our sample were actually professionals, some of them earning very high incomes. That's during the same period in which there were other mechanisms whereby you had some of your high-tech workers coming in through executive exchanges, which were shut down. So we have a phenomenon of things being shut down and tightened, and then a growth in the temporary help.