6 Months to 1 Billion

From PlayList
So the iTunes Store just sold its three billionth song.

Looking at it as precisely as possible, if we assume the two and three billion song targets were hit the same day as the press releases went out (January 9, 2007, and July 31, 2007, respectively), that means it took 203 days to sell one billion songs. The Store had to average about 4,926,108 song purchases per day, or 205,255 per hour. Breaking it down even further, that's 3,421 songs sold per minute, or an astounding 57 songs sold every second for those 203 days!

If each song is an average of 5MB, then the Store’s bandwidth usage—just for songs, not counting movies, TV shows, games, podcasts, or any other non-song-related Store item—is a staggering 1,002GB per hour.

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