From: The Port Authority of NY & NJ
I don't know how useful these numbers are for tour guides, but they're absolutely fascinating to me.
JKF airport welcomed (in a down year) 47,322,573 passengers and crew flying during 2009.
The airport saw 414,920 flights over that time period.
Taxis were dispatched at a rate of more than 5 per minute every hour of every day of the year (2,798,833 total).
Airtrain brought nearly 4.5 million (4,499,935) passengers to the airport.
And 4,429,201 cars were parked at the massive Port Authority parking lots around the airport that year.