Dr Shaw believes the 2001 survey provides some statistical evidence that locals have indeed been priced out of the property market.

BBC: The gap between rich and poor is still wide, the report says

Such a concentration of hidden income in high-income groups demonstrates that much of it is not about simple statistical problems in the household survey but potentially income from illegal sources.

FORBES: The Chinese Have $1.5 Trillion In Hidden Income

That the survey went beyond the statistical findings to illustrate what this marketplace might look like is worth noting.

FORBES: Connect

As long as the survey group is a true statistical representation of the country -- in terms of race and gender, for example -- even a small pool of respondents can yield results that are accurate for the whole country.

CNN: To a pollster, less is more

The data come from the European Health Interview Survey (EHIS) and was published by Eurostat, the statistical office of the European Union.

BBC: UK women are 'fattest in Europe'

The picture of an increasingly high-tech education was revealed in the 1999 Survey of Information and Communications Technology, which was published by the Government Statistical Service.

BBC: High-tech future for Scottish schools