studies

I wonder how many percent of people in the age group 20-30 who use porn? and how frequent they do (in US and Europe)
I watched porn 5-6 days pr week. And I would like to compare it to whats "normal"
Any studies on masturbation freqency also?

Hi, I'm still struggling to go for more than 4 days without masturbating (just had a relapse yesterday). It just seems to me that on that third or fourth day, I just can't think of anything else but 'not to masturbate'; so I'm thinking about it...