Year	Month	Nb_of_distinct_IPs	Nb_of_downloads
2011	Jan	42	55
2011	Feb	33	39
2011	Mar	34	44
2011	Apr	43	49
2011	May	21	25
2011	Jun	33	44
2011	Jul	37	37
2011	Aug	29	38
2011	Sep	32	37
2011	Oct	26	40
2011	Nov	39	52
2011	Dec	27	41
2011	all	361	501