Our labour force survey has a sample of about 60,000 households. That is spread out right across this country. We get the employment regions to get at what the labour market situation is: the number of people who are employed, the number of people who are unemployed and those who are still looking but can't find something. We break it down. In the last year or so, we've gone much deeper in terms of looking at it by employment equity groups and so on. That's on your question of what level of detail we get to. Of course, the lower the level of detail, the lesser the confidence in all those cross products that I just mentioned.
In terms of this mismatch, there are a couple of components. One is that we will actually do the job vacancy survey, which says, “Okay, what are the numbers of vacancies?” We get a sense of where—in which areas—we're seeing those vacancies. Then we start to put together that labour market picture, if you like, of supply and demand, which gets at your question.
My last point, very quickly, is on how business then translates that labour cost into the price of their goods and services. That's what the CPI measures. They may or may not transfer those increased costs, which may or may not be reflected in the CPI.
I hope that gives you a fulsome picture.