1 Omniture, Jan-Mar 2013, monthly average
2 Omniture Q1 2011 (January - March) bbc.com/mobile data
3 iTunes, accessed through appfigures.com, March 2010 - March 2012 4 EMS + CMS 2012. Target is BBC monthly audience (6,725,000/4,643)
5 Omniture, March 2011- March 2012, monthly average