No, it is you guys who download and upload a fair bit, just now the 'non-computer/internet literate generation' are actually using a few GB here and there they don't compensate as much as they used to by paying the same but using considerably less so average usage is higher
Previously Usenet whores were downloading DVDs and 'non-computer/internet literate generation' members were browsing a bit, now Usenet whores are downloading Blu Rays and the 'non-computer/internet literate generation' are rude enough to stream a bit here and there along with both playing games online and downloading the odd legitimately purchased one, along with this prices per Mbit have dropped too.