Year	Month	Nb_of_distinct_IPs	Nb_of_downloads
2011	Jan	24	29
2011	Feb	29	33
2011	Mar	27	43
2011	Apr	34	57
2011	May	20	27
2011	Jun	36	44
2011	Jul	30	31
2011	Aug	33	52
2011	Sep	21	25
2011	Oct	25	34
2011	Nov	32	40
2011	Dec	18	20
2011	all	267	435