Year	Month	Nb_of_distinct_IPs	Nb_of_downloads
2011	Jan	27	35
2011	Feb	25	38
2011	Mar	22	40
2011	Apr	34	44
2011	May	24	33
2011	Jun	35	43
2011	Jul	32	34
2011	Aug	28	34
2011	Sep	24	30
2011	Oct	26	41
2011	Nov	40	49
2011	Dec	31	52
2011	all	305	473