I know a bunch of guys, in my age group in particular, are also interested in these statistics. In my "world" everybody seems to accept the statement, "boys masturbate more (even way more) than girls."
We need more guys to vote because there are nearly three times as many girls that voted as there are boys.
Even with that difference however, it appears that from the results so far, guys DO masturbate more often than girls. At least that's the way it looks when I compare the numbers.
We've got a major discussion, among boys and girls, about how, or if, any of this relates to a belief that girls desire sex less than guys. Or; That girls have more emotional involvement in sex, where guys are in it for the physical.
Not sexually active yet, but I'm just saying we're discussing this stuff.