I think the short answer is that we don't know. So, it's difficult to know based upon people....
We have historical data about what was happening when people were able to set aside $5,000 or $5,500. We don't actually have access to data with respect to the doubling of that rate to $11,000 per year.
What we can point back to, of course, is our publication from last year with respect to the TFSA program. What you saw, in particular for the first few years of the program, was that people were actually transferring wealth, accumulated wealth from non-sheltered accounts into their TFSAs.
As we pointed out in that paper, one would presume that over time, as that stock of wealth that was previously unsheltered slowly dissipated, the contribution rates and maximization rates would begin to drop.