Year	Month	Nb_of_distinct_IPs	Nb_of_downloads
2011	Jan	84	97
2011	Feb	35	49
2011	Mar	44	69
2011	Apr	43	58
2011	May	30	38
2011	Jun	43	50
2011	Jul	53	61
2011	Aug	55	63
2011	Sep	41	67
2011	Oct	45	75
2011	Nov	51	77
2011	Dec	36	45
2011	all	513	749