Yes, £ per week (didn't I say? - I'd better edit the post). The heading is just "household expenditure" - it probably lumps all households in together, whether they consist of one person or twenty.

The taxable-income groups are as given in the book - the original report may have more data. And I can't be bothered to put a graph on LJ at the moment - maybe when unemployment has eaten rather more deeply into my soul -