Year	Month	Nb_of_distinct_IPs	Nb_of_downloads
2011	Jan	64	86
2011	Feb	42	61
2011	Mar	48	57
2011	Apr	85	103
2011	May	65	96
2011	Jun	55	69
2011	Jul	63	67
2011	Aug	57	73
2011	Sep	32	42
2011	Oct	38	50
2011	Nov	72	105
2011	Dec	49	54
2011	all	553	863