Year	Month	Nb_of_distinct_IPs	Nb_of_downloads
2011	Jan	34	48
2011	Feb	28	41
2011	Mar	24	40
2011	Apr	38	49
2011	May	42	52
2011	Jun	33	39
2011	Jul	40	43
2011	Aug	36	45
2011	Sep	29	37
2011	Oct	28	51
2011	Nov	51	68
2011	Dec	34	54
2011	all	351	567