Year	Month	Nb_of_distinct_IPs	Nb_of_downloads
2011	Jan	20	31
2011	Feb	22	29
2011	Mar	17	30
2011	Apr	24	28
2011	May	17	22
2011	Jun	26	30
2011	Jul	26	28
2011	Aug	22	23
2011	Sep	18	21
2011	Oct	20	31
2011	Nov	37	51
2011	Dec	22	34
2011	all	243	358