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This statistic shows the global sales of the Apple iPhone between 2007 and 2011. In the 2011 fiscal year, Apple sold 72 million iPhones, which brought the total number of units shipped (to date) to 140 million. In less than 5 years the iPhone has become Apple’s most important product: in the 2011 fiscal year, iPhone revenue amounted to 47 billion U.S. dollars, representing more than 40 percent of Apple's total revenue. In the third quarter of 2011, 15 percent of all smartphones sold to end users were phones with the iOS operating system. In May 2011, Apple's market share in the U.S. smartphone market was 26.6 percent.