Stick with me here...
15000/187 = 80.2 hours/F-22 airframe last FY
~7000/7 = 1000 hours/EP-3 airframe last FY
AVG F-22 sortie length = (and I'm guessing...1.8 hours?)
AVG EP-3 sortie length = 8.5 hours
AVG sortie count per airframe last FY F-22- 44.55
AVG sortie count per airframe last FY-EP-3- 117.65
He said they have 15,ooo hours "since September 11". I have to assume they mean September 11 of last year, not September 11, 2001. In that case it's only been eight months. Also, the last jet off the production line was only delivered about a week or two ago so they didn't have the whole 187 during that time. Also the entire fleet was grounded for a while.