In "Roadmap to Arizona's Economic Recovery," a general fund revenue forecast is presented which includes proposed changes to the revenue system. If the proposed changes are backed out of these figures, the baseline forecast can be obtained. This addendum provides detail on the Roadmap's revenue projection. the three key points are: 1) Arizona's economy is highly cyclical, growing much faster than the nation during economic expansions; 2) Revenues everywhere, but especially in Arizona, given its revenue structure, are much more cyclical than the overall economy; 3) the revenue forecast in the Roadmap is actually conservative. Revenues relative to the size of the economy remain below the historical norm, even in fiscal year 2015.