Year	Month	Nb_of_distinct_IPs	Nb_of_downloads
2013	Jan	1	1
2013	Feb	3	3
2013	Mar	4	4
2013	Apr	0	0
2013	May	0	0
2013	Jun	1	1
2013	Jul	2	2
2013	Aug	1	1
2013	Sep	0	0
2013	Oct	1	1
2013	Nov	1	2
2013	Dec	0	0
2013	all	14	15