Year	Month	Nb_of_distinct_IPs	Nb_of_downloads
2015	Jan	0	0
2015	Feb	3	3
2015	Mar	4	5
2015	Apr	1	1
2015	May	2	2
2015	Jun	1	1
2015	Jul	0	0
2015	Aug	1	1
2015	Sep	1	2
2015	Oct	3	5
2015	Nov	3	4
2015	Dec	3	13
2015	all	21	37