Year	Month	Nb_of_distinct_IPs	Nb_of_downloads
2011	Jan	51	73
2011	Feb	46	69
2011	Mar	49	77
2011	Apr	56	83
2011	May	50	61
2011	Jun	58	65
2011	Jul	61	69
2011	Aug	68	85
2011	Sep	59	90
2011	Oct	61	86
2011	Nov	70	92
2011	Dec	50	69
2011	all	589	919