Year	Month	Nb_of_distinct_IPs	Nb_of_downloads
2011	Jan	21	26
2011	Feb	18	24
2011	Mar	15	29
2011	Apr	23	32
2011	May	15	18
2011	Jun	25	31
2011	Jul	29	29
2011	Aug	20	28
2011	Sep	19	25
2011	Oct	19	37
2011	Nov	29	39
2011	Dec	20	32
2011	all	220	350