Year	Month	Nb_of_distinct_IPs	Nb_of_downloads
2011	Jan	23	44
2011	Feb	27	38
2011	Mar	26	61
2011	Apr	33	60
2011	May	17	21
2011	Jun	27	47
2011	Jul	32	39
2011	Aug	23	37
2011	Sep	22	61
2011	Oct	33	61
2011	Nov	38	58
2011	Dec	25	28
2011	all	246	555