Year	Month	Nb_of_distinct_IPs	Nb_of_downloads
2013	Jan	23	42
2013	Feb	51	70
2013	Mar	34	52
2013	Apr	41	57
2013	May	36	42
2013	Jun	32	87
2013	Jul	156	166
2013	Aug	50	63
2013	Sep	39	48
2013	Oct	64	95
2013	Nov	79	106
2013	Dec	75	88
2013	all	541	916