Year	Month	Nb_of_distinct_IPs	Nb_of_downloads
2015	Jan	0	0
2015	Feb	0	0
2015	Mar	0	0
2015	Apr	42	60
2015	May	56	73
2015	Jun	73	100
2015	Jul	68	99
2015	Aug	60	87
2015	Sep	56	92
2015	Oct	79	135
2015	Nov	68	104
2015	Dec	92	131
2015	all	494	881