Year	Month	Nb_of_distinct_IPs	Nb_of_downloads
2011	Jan	0	0
2011	Feb	0	0
2011	Mar	0	0
2011	Apr	1	1
2011	May	5	5
2011	Jun	16	19
2011	Jul	19	20
2011	Aug	10	10
2011	Sep	13	15
2011	Oct	12	17
2011	Nov	34	42
2011	Dec	13	16
2011	all	121	145