Over 50% of 14-24 year olds living in the UK use P2P networks or torrent trackers to download music on a daily or weekly level

"Popularity of P2P remains unchanged since 2008 – 61% said they download music using P2P networks or torrent trackers. Of this group, 83% are doing so on a weekly or daily basis"
(83% of 61% = 50.6%)
Source: UK Music survey, 10th August 2009