Year	Month	Nb_of_distinct_IPs	Nb_of_downloads
2011	Jan	50	62
2011	Feb	39	60
2011	Mar	51	79
2011	Apr	48	57
2011	May	45	50
2011	Jun	51	62
2011	Jul	60	80
2011	Aug	64	82
2011	Sep	44	55
2011	Oct	38	54
2011	Nov	67	95
2011	Dec	49	63
2011	all	539	799