I think the real reason for that is that we have an aging population. We have people who are living longer. Once you get to a certain age, the likelihood that you're going to continue until you get much older is much higher. Therefore, we need to allow people to take the money out more slowly than they have in the past.
It's been since, I think, 1991. There was a change from 67 to 71 a number of years ago, but in terms of how much you must take out once you're in a RRIF situation, it hasn't really changed for quite some time, at least since 1991.