At 4.05%, which I agree is a relatively conservative projection, it is sustainable for the next 75 years, but it gets back to my point that if it were to drop, it could become unsustainable. That is not—I'm going to guess what your response is going to be—the historical record of the CPP. I believe the investment rate is more like 9% or 10%. What would be the historical rate of return on the CPP? Just broad strokes is fine.
