The total number of Macintoshes sold by Apple each quarter going back to September 1997 was nicely graphed on Thursday by Charles Gaba at his Website, systemshootouts.org. The graph shows the beginning of a new trend in Mac sales that started in late 2004.
A second chart shows Appleis world-wide market share for the same period.
In addition, there is tabular data for Appleis market share against PC manufacturers and year over year (Y/Y) growth going back to 2005.
The charts and data provide useful numbers for those who may want to research trends and assess how Apple has been doing, particularly in the past few years, against the PC makers.