Year	Month	Nb_of_distinct_IPs	Nb_of_downloads
2011	Jan	56	81
2011	Feb	40	55
2011	Mar	44	60
2011	Apr	75	93
2011	May	60	90
2011	Jun	56	72
2011	Jul	60	63
2011	Aug	60	77
2011	Sep	34	48
2011	Oct	37	50
2011	Nov	73	102
2011	Dec	53	66
2011	all	530	857