Apple Inc (AAPL)

[BlueDjinn]

iTunes sales charts updated:

http://www.systemshootouts.org/itunes_sales.html

Note how all-over-the-map the "Average sold per day" chart appears; this may be because unlike iPod or Mac sales, which are released at regular quarterly intervals, the iTunes figures are released whenever Apple happens to feel like it.

Even then, they often simply say "OVER XX number have been sold to date" which gives room for plenty of leeway. For instance, when they announced "MORE THAN 3 billion" this morning, that could mean significantly more, perhaps 3.2-3.3 billion or so, which would skew the "avg. per day" graph significantly once they announce the 4 billion figure.

Even so, it looks like they're right around 5 million per day overall, or around 1.8 billion per year.