Year	Month	Nb_of_distinct_IPs	Nb_of_downloads
2011	Jan	52	65
2011	Feb	39	47
2011	Mar	46	68
2011	Apr	52	84
2011	May	38	52
2011	Jun	42	55
2011	Jul	53	54
2011	Aug	44	60
2011	Sep	40	46
2011	Oct	45	69
2011	Nov	106	152
2011	Dec	66	78
2011	all	493	830