Year	Month	Nb_of_distinct_IPs	Nb_of_downloads
2015	Jan	3	5
2015	Feb	1	1
2015	Mar	4	5
2015	Apr	3	3
2015	May	3	4
2015	Jun	1	1
2015	Jul	2	2
2015	Aug	1	2
2015	Sep	4	6
2015	Oct	8	25
2015	Nov	6	11
2015	Dec	2	5
2015	all	35	70