Market research firm IDC released its latest phone data, which shows the worldwide mobile phone market grew 11.3 percent in the second quarter of 2011. This growth was, in part, due to Apple, which more than doubled its market share over this time last year.

[ad#Google Adsense 300×250 in story]One of the big winners of the transition to smartphones is Apple. In the second quarter of 2010, Apple shipped 8.4 million units worldwide, giving it 2.6 percent of the market. In the second quarter of 2011, Apple shipped 20.3 million units, giving it 5.6 percent of the market, according to IDC.

That’s a 141.8 percent year-over-year growth.

The two big losers were Nokia, which dropped 20.3 percent to 24.2 percent market share from 33.8 percent this time last year, and LG, which dropped 18.9 percent to 6.8 percent from 9.3 percent last year.

“Apple maintained its number four position overall but closed the gap on Top 5 competitors thanks to another record unit shipment quarter,” wrote IDC in its report. “The company easily posted the highest growth rate of the worldwide leaders despite the fact that its flagship iPhone 4 is now more than a year old. The triple-digit shipment volume growth allowed Apple to more than double its share when compared to the same quarter last year.”