Shipments of CDs peaked at 942.5 mln units in 2000 and fell by 25% to 705 mln units in 2005, according to Pew Internet Project. Figures released earlier this year show that album sales fell by 9.5% in 2007, even though digital sales grew by 45% in this period. Some 27% of internet users say they have downloaded music from the internet, according to our March 2006 survey. 53% of respondents said they had purchased music in 2007, and 26% of respondents were directed to the module with detailed questions about music purchasing. Respondents who were directed to the music module are not representative of the general population. They are more likely to be internet users 83% and to have broadband at home (59% do), which compares to 73% and 50% respectively in the general population. They are also slightly younger, with a median age among adults of 43 compared with 45 in the general adult internet population.