Year	Month	Nb_of_distinct_IPs	Nb_of_downloads
2011	Jan	7	8
2011	Feb	9	15
2011	Mar	6	8
2011	Apr	4	4
2011	May	7	9
2011	Jun	4	4
2011	Jul	8	10
2011	Aug	5	7
2011	Sep	0	0
2011	Oct	1	1
2011	Nov	2	2
2011	Dec	0	0
2011	all	51	68