Year	Month	Nb_of_distinct_IPs	Nb_of_downloads
2011	Jan	0	0
2011	Feb	1	1
2011	Mar	0	0
2011	Apr	0	0
2011	May	0	0
2011	Jun	2	2
2011	Jul	2	3
2011	Aug	1	1
2011	Sep	1	1
2011	Oct	0	0
2011	Nov	0	0
2011	Dec	3	3
2011	all	10	11