Year	Month	Nb_of_distinct_IPs	Nb_of_downloads
2011	Jan	21	28
2011	Feb	19	32
2011	Mar	15	33
2011	Apr	22	24
2011	May	16	22
2011	Jun	24	28
2011	Jul	27	27
2011	Aug	21	23
2011	Sep	20	24
2011	Oct	21	40
2011	Nov	30	41
2011	Dec	23	47
2011	all	228	369