to this increase,

Net sales of iPhone and related products and services were $80.5 billion in 2012, representing an increase of $33.4 billion or 71% compared to 2011. iPhone unit sales totaled 125.0 million during 2012, representing an increase of 52.8 million units or 73% compared to 2011. The year-over-year growth in iPhone net sales and unit sales during 2012 reflects strong demand for iPhone in all of the Company’s operating segments, which is primarily a result of the launches of iPhone 4S in the first quarter of 2012 and iPhone 5 in the fourth quarter of 2012, ongoing demand for iPhone 4 and iPhone 3GS, and expanded distribution with new carriers and resellers. Net sales of iPhone and related products and services were 51% and 43% of the Company’s total net sales for 2012 and 2011, respectively. 

Net sales of iPad and related products and services were $32.4 billion in 2012, representing an increase of $12.1 billion or 59% compared to 2011. Unit sales of iPad were 58.3 million during 2012, an increase of 80% from 2011. The year-over-year increase in iPad net sales and unit sales during 2012 was driven by strong demand for iPad in all of the Company’s operating segments as a result of the launch of the new iPad in March 2012, continued demand for iPad 2, and expanded distribution with new resellers. The year-over-year growth rate of iPad unit sales was higher than the growth rate of iPad net sales during 2012 due to a reduction of average selling prices as a result of a shift in product mix toward lower-priced iPad models, the price reduction for iPad 2 and an increase in indirect sales due to expanded distribution through third-party resellers. Net sales of iPad and related products and services were 21% and 19% of the Company’s total net sales for 2012 and 2011, respectively. 

Mac net sales were $23.2 billion in 2012, representing an increase of $1.4 billion or 7% compared to 2011. Mac unit sales totaled 18.2 million during 2012, representing an increase of 1.4 million or 9% compared to 2011. The year-over-year growth in Mac net sales and unit sales during 2012 reflects increased demand for Mac portables in all of the Company’s operating segments driven by 2012 releases of updated models of MacBook Air and MacBook Pro, including the new MacBook Pro with Retina display in June 2012. Partially offsetting the increase in net sales of Mac portables was a decline in net sales of Mac desktops that reflected the overall decline in the market for desktop personal computers during 2012. Additionally, the Company did not introduce updated versions of its Mac desktop products in 2012. Mac net sales were 15% and 20% of the Company’s total net sales for 2012 and 2011, respectively. 

Net sales of other music related products and services were $8.5 billion in 2012, representing an increase of $2.2 billion or 35% compared to 2011. The increase was due primarily to growth of the iTunes Store, which generated total net sales of $7.5 billion for 2012 compared to net sales of $5.4 billion during 2011. The strong results of the iTunes Store reflect growth of the App Store; growth of the Company’s customer base; and the continued expansion of