You indicated that the lifetime of a bus is about 12 years, so you're looking at those investments over the next 12 years, whatever the scenario would be. Whether they'd be completely conventional buses or CNG buses, that's an investment, and if I understand right, you're adding about $50,000 per bus for the CNG conversion. Really, in the big picture, even at 1,000 buses the additional investment for CNG is not huge.
That brings me back to the building. You talked about having your building completed by 2015. When do you intend to start on that building process?