| http://www.w3.org/ns/prov#value | - Fiscal Year Ended January 31, Six Months Ended July 31, 2011 2012 2013 2012 2013 (unaudited) Listener hours (in period, in billions)(1) 3.83 8.23 14.01 6.39 8.06 Active users (end of period, in millions)(2) 29.3 47.6 65.6 54.9 71.2 Ad RPMs (in period):(3) Total ad $ 33.65 $ 33.22 $ 29.13 $ 27.22 $ 33.10 Traditional computer $ 61.60 $ 62.68 $ 53.73 $ 51.61 $ 53.43 Mobile and other connected devices
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