Year	Month	Nb_of_distinct_IPs	Nb_of_downloads
2011	Jan	31	40
2011	Feb	32	36
2011	Mar	35	49
2011	Apr	34	57
2011	May	30	39
2011	Jun	48	65
2011	Jul	42	43
2011	Aug	25	39
2011	Sep	24	29
2011	Oct	33	56
2011	Nov	51	72
2011	Dec	36	41
2011	all	334	566