An 80% increase since this proposal was made in 2003 sounds like the sort of nonsensical hyperbole that gets spouted by clueless drunks at grimy bars.
Well, if you have some links to contrary estimates from reliable sources, that would be great. The 80% figure had a big impact on my thinking. If the number is bogus, and there has been no change in the flow, I would find that reassuring.