We'd be happy to provide whatever further information you would consider useful.
On the issue of mandatory versus voluntary surveys, there are only two mandatory household surveys that we do. One is the census and the other is the labour force survey. The labour force survey is mandatory because it feeds into the estimates of national accounts. So we really need to have very solid numbers with respect to employment. That's the only one we do that way.
Once a person is selected for the labour force survey, they're in for six months. The first interview per person might take 10 minutes. After that there's only a limited amount of information collected at subsequent interviews. It basically works out to a couple of minutes of time, on average, for every subsequent interview. So it's not that burdensome a survey. We do everything we can to minimize the burden it causes, and we use that approach to actually....