Year	Month	Nb_of_distinct_IPs	Nb_of_downloads
2011	Jan	51	72
2011	Feb	44	64
2011	Mar	73	109
2011	Apr	55	61
2011	May	49	77
2011	Jun	60	172
2011	Jul	62	78
2011	Aug	31	38
2011	Sep	102	116
2011	Oct	39	60
2011	Nov	49	64
2011	Dec	34	52
2011	all	563	963