Nov | 4 | 3 | 2 | 1 | total |
2008 | 265 | 196 | 135 | 121 | 717 |
2007 | 84 | 58 | 45 | 37 | 224 |
220% |
The VGChartz data do show a much higher rate than GfK reports. Above I quickly summed Others Total without Australia and Others for the 4 weeks in November - which shows a 220% increase. To get to the 124% increase, either 2007 was undertracked or 2008 overtracked - around 50k per week discrepancy. I think its more the case that 2007 is undertracked and 2008 slightly overtracked.