;"Friday, 11 of April";"Thursday, 10 of April";"average on Friday";"average for 7 days"
"Visitors during 31 days";33;?;27;33
"Visitors during 7 days";9;?;5.5;9
"Visitors during a day";4;?;1.8;4
"New (or were not present during 31 days)";3;?;1;3
"Continual (present every day during a week)";0;?;0.5;0
"Main body (present every week during a month)";0;?;1;0
"Permanent (present every month or during 4 months)";1;?;1;1