No, they had 43 in the 80s under Ed Broadbent.
It's a great issue for their core supporters, i.e. affluent people. They're the ones who spend more in disposable income, so they're the ones who would benefit the most. Whereas poorer Canadians spend less and would thus save less, plus they get a GST rebate when the file their income tax return anyway.
Being rich myself, I have no problem with tax cuts for the rich.
That said, I don't get the credit and I also spend more in disposible income, but I still have no issues with the tax at 7%. It's been there for so long now that they're just going to end up having to tax something else to make up for the lost money that it brings in.