While I am on the subject, since the Financial Secretary stood up around 25 minutes ago, £4 million has been added to the national debt. If Government Members do not recognise those Office for National Statistics-based calculations, they may wish to make up their own, which is what the Chancellor seems to do fairly regularly.
The Financial Secretary also forgot to mention the fact that median incomes in the north-west, south-west and west midlands are 30% lower than those in London and the south-east, and 35% and 22% lower than those in Wales and Scotland respectively.