Of the 4368 Hum hearers who reported their age, about 55% of them are male. This contradicts an earlier assumption that claimed the opposite.
If anyone out there would like to crunch some additional stats, by all means do so. Let me know if you have any trouble downloading the full database.
P.S. The reason there are about 1500 database entries with limited information is that I was running two entry forms, one detailed, and one very simple. The simple form has since been eliminated; everybody must use the detailed form now.