Figure 3: Estimated units sales in EU of all portable audio devices and MP3 devices over the period 2004–2007,

as a function of estimate procedure,

adjusted for the EU population estimated by EuroStat.

Coverage and target population estimation assumptions using Eurostat data

Source: SCENIHR,  Potential health risks of exposure to noise from personal music players and mobile phones including a music playing function (2008) , Sections 3.7.4., Page 45.