Year	Month	Nb_of_distinct_IPs	Nb_of_downloads
2011	Jan	51	84
2011	Feb	41	59
2011	Mar	42	51
2011	Apr	73	85
2011	May	58	90
2011	Jun	70	87
2011	Jul	74	86
2011	Aug	64	87
2011	Sep	41	60
2011	Oct	42	59
2011	Nov	72	112
2011	Dec	46	51
2011	all	553	911