2007 -December 2012: 500 million iOS devices sold.
October - December 2012 - 75 million devices sold
Conclusion: Apple sold, during the Q1 2013’s 13 weeks, 15% of all iOS devices ever sold. 15% in three damn months.
Probably a good reason for why Apple’s share price fell. LOL
The market clearly wanted them to sell 15 quadrillion iOS devices in the past three months.