Year Month Nb_of_distinct_IPs Nb_of_downloads 2009 Jan 21 40 2009 Feb 20 23 2009 Mar 48 69 2009 Apr 41 70 2009 May 32 56 2009 Jun 20 23 2009 Jul 34 46 2009 Aug 23 32 2009 Sep 36 48 2009 Oct 29 31 2009 Nov 38 61 2009 Dec 24 38 2009 all 308 537