"Unless radical policies are implemented, it is simply a matter of time before manufacturing, consumption, tax receipts, fiscal health, the pension and welfare system, and the very ability of people to make a living will all collapse under the inexorable dual pressures of rapid ageing and rapid declines in the young working population."
Each of the tax offices are thought to have kept such files on more than 1,000 foreign taxpayers, but the number of those identified by nationality or alien registration number is not known.