tlj3071
Contributor
I've been trying to answer what seems to be a reasonably simple question, but have had lots of difficulty in coming up with an answer. To wit: What percentage of the U.S. population are certified SCUBA divers? As a follow up question: What is the average age (either median or mean) of certified divers in the U.S.?
Any pointers to places I might look to find these answers would be greatly appreciated.
Tom
Any pointers to places I might look to find these answers would be greatly appreciated.
Tom