Year	Month	Nb_of_distinct_IPs	Nb_of_downloads
2015	Jan	22	31
2015	Feb	23	28
2015	Mar	30	44
2015	Apr	28	44
2015	May	15	20
2015	Jun	23	26
2015	Jul	26	34
2015	Aug	21	32
2015	Sep	24	48
2015	Oct	27	48
2015	Nov	23	33
2015	Dec	26	61
2015	all	250	449