Now, with respect to going back 20 years and so on, the reason we don't use more than 20 years is because it's so unpredictable. There are so many unknowables out there that it really becomes a meaningless number. But I'm not sure who I'd ask about this....
I'll ask Mr. Fonberg. You can pass it on.
You can take that number and extrapolate it to anything you want. You can extrapolate it to 30 years, 40 years, or 50 years, but for sound planning, you have to go with something that at least has some predictability to it. Is that a fair statement?