Year	Month	Nb_of_distinct_IPs	Nb_of_downloads
2011	Jan	0	0
2011	Feb	2	2
2011	Mar	10	13
2011	Apr	35	39
2011	May	47	78
2011	Jun	46	62
2011	Jul	64	73
2011	Aug	59	78
2011	Sep	48	74
2011	Oct	47	69
2011	Nov	60	111
2011	Dec	53	68
2011	all	400	667