Year	Month	Nb_of_distinct_IPs	Nb_of_downloads
2011	Jan	23	32
2011	Feb	18	25
2011	Mar	15	34
2011	Apr	24	31
2011	May	19	22
2011	Jun	25	29
2011	Jul	29	31
2011	Aug	24	29
2011	Sep	24	28
2011	Oct	19	32
2011	Nov	31	42
2011	Dec	21	30
2011	all	232	365