Year	Month	Nb_of_distinct_IPs	Nb_of_downloads
2015	Jan	10	10
2015	Feb	2	2
2015	Mar	6	8
2015	Apr	5	5
2015	May	11	13
2015	Jun	2	2
2015	Jul	4	5
2015	Aug	4	7
2015	Sep	2	2
2015	Oct	3	11
2015	Nov	6	11
2015	Dec	15	31
2015	all	60	107