Year	Month	Nb_of_distinct_IPs	Nb_of_downloads
2011	Jan	21	28
2011	Feb	15	24
2011	Mar	12	20
2011	Apr	20	23
2011	May	9	11
2011	Jun	15	18
2011	Jul	31	34
2011	Aug	17	21
2011	Sep	24	28
2011	Oct	17	26
2011	Nov	24	38
2011	Dec	19	30
2011	all	202	301