The success of the iPhone and the iPad has contributed to the success of Apple on Wall Street. On Monday, Apple became the most valuable company — ever.

Here's a look at Apple's smartphone and tablet shipments for the past several quarters.

Quarter ending June 30, 2012: 26 million iPhones, 17 million iPads

Quarter ending March 31, 2012: 35.1 million iPhones, 11.8 million iPads

Quarter ending Dec. 31, 2011: 37 million iPhones, 15.4 million iPads

Quarter ending Sept. 24, 2011: 17.1 million iPhones, 11.1 million iPads

Quarter ending June 25, 2011: 20.3 million iPhones, 9.25 million iPads

Quarter ending March 26, 2011: 18.7 million iPhones, 4.7 million iPads