Year	Month	Nb_of_distinct_IPs	Nb_of_downloads
2011	Jan	50	67
2011	Feb	46	71
2011	Mar	45	69
2011	Apr	40	45
2011	May	55	72
2011	Jun	55	65
2011	Jul	44	47
2011	Aug	32	40
2011	Sep	32	36
2011	Oct	40	55
2011	Nov	65	79
2011	Dec	63	99
2011	all	501	745