Year	Month	Nb_of_distinct_IPs	Nb_of_downloads
2011	Jan	31	37
2011	Feb	23	26
2011	Mar	23	38
2011	Apr	30	33
2011	May	21	27
2011	Jun	26	31
2011	Jul	35	35
2011	Aug	25	29
2011	Sep	27	31
2011	Oct	21	35
2011	Nov	42	53
2011	Dec	31	41
2011	all	300	416