Sorry to nit pick but teenage to early twenties account for most of the record sales (singles)...... that is why most of the pop music promoters aim their product at this group. Here is a link .....it is old but the principle is still the same.

http://www.statistics.gov.uk/StatBase/ssdataset.asp?vlnk=7183&Pos=&ColRank=1&Rank=272

http://www.soundclick.com/bands/songInfo.cfm?bandID=687727&songID=5238055