Year	Month	Nb_of_distinct_IPs	Nb_of_downloads
2011	Jan	29	35
2011	Feb	28	32
2011	Mar	31	52
2011	Apr	43	49
2011	May	38	50
2011	Jun	36	41
2011	Jul	53	60
2011	Aug	37	45
2011	Sep	37	41
2011	Oct	63	91
2011	Nov	62	82
2011	Dec	48	66
2011	all	429	644