Year	Month	Nb_of_distinct_IPs	Nb_of_downloads
2011	Jan	73	110
2011	Feb	49	76
2011	Mar	54	75
2011	Apr	78	94
2011	May	69	113
2011	Jun	63	85
2011	Jul	62	76
2011	Aug	63	86
2011	Sep	42	57
2011	Oct	42	65
2011	Nov	31	38
2011	Dec	20	26
2011	all	510	901