Heres a domain I picked up two weeks ago.
Has a OV with /ext score of 20
Apr 1 - Vistits = 8
Apr 2 - Vistits = 5
Apr 3 - Vistits = 12
Apr 4 - Vistits = 17
Apr 5 - Vistits = 8
Apr 6 - Vistits = 10
Apr 7 - Vistits = 7
Apr 8 - Vistits = 13
Apr 9 - Vistits = 11
Apr 10 - Vistits = 17
Apr 11 - Vistits = 23
Apr 12 - Vistits = 17
Apr 13 - Vistits = 11
Apr 14 - Vistits = 6
Apr 15 - Vistits = 8
Average 11 visits per day.
Seeing as the OV score was for last month then I think it looks more likely a daily score. Maybe down a little with the Easter holidays