Number of iPads sold by Apple by quarter

Apple said it sold its 100 millionth iPad two weeks ago, two and a half years after the first model came out.

That means Apple has sold 16 million since June 30, when it last disclosed iPad sales. Apple is expected to get a boost with the release next month of a smaller iPad and an update to its full-sized one.

Here's the breakdown of iPad sales by quarter.

— 3.3 million in fiscal third quarter 2010 (through June 26); iPad went on sale April 3, 2010.

— 4.2 million in fiscal fourth quarter 2010 (through Sept. 25)

— 7.3 million in fiscal first quarter 2011 (through Dec. 25)

— 4.7 million in fiscal second quarter 2011 (through March 26); iPad 2 went on sale March 11, 2011.

— 9.3 million in fiscal third quarter 2011 (through June 25)

— 11.1 million in fiscal fourth quarter 2011 (through Sept. 24)

— 15.4 million in fiscal first quarter 2012 (through Dec. 31, 2011)

— 11.8 million in fiscal second quarter 2012 (through March 31, 2012); third-generation iPad went on sale March 16.

— 17 million in fiscal third quarter 2012 (through June 30, 2012).

— About 16 million from July to early October.