Year	Month	Nb_of_distinct_IPs	Nb_of_downloads
2011	Jan	1	8
2011	Feb	7	16
2011	Mar	9	24
2011	Apr	34	41
2011	May	46	74
2011	Jun	46	60
2011	Jul	58	61
2011	Aug	50	66
2011	Sep	31	41
2011	Oct	33	47
2011	Nov	60	88
2011	Dec	45	51
2011	all	357	577