Net sales of iPods rose $3.2 billion or 248% during 2005 compared to 2004. Unit sales of iPods totaled 22.5 million in 2005, which represents an increase of 409% from the 4.4 million iPod units sold in 2004. Strong sales of iPods during 2005 continued to be experienced in all of the Companys operating segments and was driven by strong demand for the iPod shuffle introduced in January 2005, the release of an updated version of the iPod mini in February 2005, the release of the iPod nano in September 2005, and expansion of the iPods distribution network . Net sales per iPod unit sold decreased 32% primarily due to the introduction of the lower priced iPod shuffle in January 2005 and iPod mini pricing reductions in February 2005. From the introduction of the iPod in 2002 through 2005, the Company has sold approximately 28 million iPods.