Apple has sold 100 million iPads in two and a half years

"Apple's special press conference on Tuesday morning may have focused on the iPad Mini, but before introducing the new device Apple revealed some interesting statistics about the iPad.
Apple CEO Tim Cook took the stage to talk about the iPad, saying, "It seems like each time we get together there's a new number to illustrate the growth of this product."
Cook revealed that in the two and a half years since the iPad was introduced, 100 million of the Apple tablets have been sold, and the iPad now accounts for 91 percent of web traffic on tablets."

Source:  TechRadar, 23rd October 2012