Nielsen SoundScan published the data on album sales in 2005 and 2006.
| Music sales in 2005 and 2006 | |||
| Sales category | 2006 | 2005 | Growth |
| Total music sales | 1,198 | 1,003 | 19.4% |
| Album sales | 588.2 | 618.9 | -4.9% |
| Digital track sales | 581.9 | 352.7 | 65% |
| Total album sales | 646.4 | 654.1 | -1.2% |
| Internet album sales | 29.4 | 24.7 | 19.0% |
| Digital album sales | 32.6 | 16.2 | 101% |
| Source: Nielsen | |||