Year	Month	Nb_of_distinct_IPs	Nb_of_downloads
2015	Jan	30	45
2015	Feb	35	44
2015	Mar	41	60
2015	Apr	21	30
2015	May	21	30
2015	Jun	17	21
2015	Jul	30	39
2015	Aug	21	31
2015	Sep	21	36
2015	Oct	38	72
2015	Nov	31	43
2015	Dec	37	98
2015	all	278	549