Year	Month	Nb_of_distinct_IPs	Nb_of_downloads
2011	Jan	34	60
2011	Feb	28	34
2011	Mar	34	51
2011	Apr	38	61
2011	May	19	27
2011	Jun	40	79
2011	Jul	47	56
2011	Aug	30	45
2011	Sep	33	44
2011	Oct	36	71
2011	Nov	59	96
2011	Dec	33	40
2011	all	333	664