Year	Month	Nb_of_distinct_IPs	Nb_of_downloads
2011	Jan	30	37
2011	Feb	26	30
2011	Mar	51	66
2011	Apr	51	80
2011	May	23	25
2011	Jun	32	37
2011	Jul	51	52
2011	Aug	32	47
2011	Sep	26	29
2011	Oct	32	49
2011	Nov	58	78
2011	Dec	39	41
2011	all	355	571