I was in the sim yesterday with a senior APD and check airman. Asked this very question. His response was the plan they have been given is 64/month through next April when once again they will slow down for the summer. Doing the math that would be approximately 450 - 500 pilots. It's for both retirements and growth. Planned retirements this year (assuming no change yet in age 65) are 253. Planned retirements in 2008 are 199.