Year	Month	Nb_of_distinct_IPs	Nb_of_downloads
2015	Jan	2	3
2015	Feb	1	1
2015	Mar	4	4
2015	Apr	4	5
2015	May	4	4
2015	Jun	2	2
2015	Jul	0	0
2015	Aug	4	6
2015	Sep	3	3
2015	Oct	3	4
2015	Nov	5	5
2015	Dec	2	2
2015	all	33	39