;"Friday, 16 of May";"Thursday, 15 of May";"average on Friday";"average for 7 days"
"Visitors during 31 days";58;?;51;58
"Visitors during 7 days";10;?;14;10
"Visitors during a day";1;?;1.5;1
"New (or were not present during 31 days)";0;?;1;0
"Main body (present every week during a month)";2;?;1.5;2
"Frequent (present every week or during 3 months)";1;?;0.75;1
"Permanent (present every month or during 4 months)";2;?;3;2