I would just add that I agree with the comment about Statistics Canada. The data are there for me as a tax expert. I can tell you exactly how many women contribute to an RRSP; I can tell you how much benefit they get from that. The raw figures are all there. It's a question of the use of the data, as I don't think the data are being used.
There are two forms of data that I particularly use. One is the tax expenditure accounts, which detail the cost of every single tax measure. I actually think Canadians would be stunned to know that the single largest personal tax expenditure is for retirement savings, generally. We spend more on that than anything else. They'd also be stunned to know that probably the largest tax expenditure in Canada is in respect of what's called the capital cost allowance, a business tax break, and so on.
So people aren't actually using the data; nobody is poring over the tax statistics, saying, wow, isn't it interesting that men are using up all their RRSP room, but women aren't, and then asking, well, why aren't they and what should be done about it, and how would that affect how we devise our tax policy?