I actually saw that data, but attributed it to a typo.
The values for 2005 on the lower are exactly those for 2006 on the upper, the values for 2006 on the lower are exactly that for 2007 on the upper (and so on)
I think we are looking at poor labelling.
Or do you really think 60 million TPM PCs shipped this year?
Somebody cited IDC and then blew it redrawing the chart.
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