Year	Month	Nb_of_distinct_IPs	Nb_of_downloads
2011	Jan	0	0
2011	Feb	0	0
2011	Mar	0	0
2011	Apr	0	0
2011	May	0	0
2011	Jun	0	0
2011	Jul	0	0
2011	Aug	18	20
2011	Sep	13	13
2011	Oct	17	30
2011	Nov	30	42
2011	Dec	20	21
2011	all	81	126