Year	Month	Nb_of_distinct_IPs	Nb_of_downloads
2011	Jan	0	0
2011	Feb	0	0
2011	Mar	0	0
2011	Apr	8	8
2011	May	12	12
2011	Jun	20	23
2011	Jul	26	27
2011	Aug	18	20
2011	Sep	11	11
2011	Oct	11	15
2011	Nov	25	32
2011	Dec	20	23
2011	all	144	171