Year	Month	Nb_of_distinct_IPs	Nb_of_downloads
2011	Jan	8	9
2011	Feb	4	5
2011	Mar	4	4
2011	Apr	1	2
2011	May	5	5
2011	Jun	4	5
2011	Jul	3	4
2011	Aug	1	1
2011	Sep	4	5
2011	Oct	5	6
2011	Nov	5	5
2011	Dec	6	7
2011	all	49	58