We would envision refining our estimates and our methodology to the extent you adopt this ordinance in future years. Obviously once the center opens, for example, we have a lot more information upon which to base future projections for subsequent cycles that are envisioned here. For example, one can routinely use intercept surveys and other things where you survey attendees at an event, in a statistically meaningful sample to arrive at what portions may be staying in hotels, for example . So we do think we can reasonably estimate that, but as mr. Rose said it really will be an estimate. Of course each year you adopt 9 billion budget which is fundamentally based on Reasonable Estimates as well. We can individually line item the estimate of direct revenue and indirect revenues that were talking about. And of course, nothing here changes the fundamental ability of the mayor and board of supervisors to not appropriate those funds to the fund in a given fiscal year to the extent that you so