You know I don't. And I know you don't either. Unless we can run a study whereby some portion of the population is entered into a control group and doesn't have access to the internet, it'll remain a question about interpreting data and not of fact.
So your statement was just a guess, just checking. I don't know the data from the record companies because I wouldn't bother reading it for fear of bias, I just know that a lot of the 'anti piracy' groups never actually put money back into the music industry, its just more money to fund more lawsuits.
That's a dangerous stance in general, probably better to listen to both sides whilst acknowledging that they are both likely to be biased in their own favour.