;"Friday, 16 of May";"Thursday, 15 of May";"average on Friday";"average for 7 days"
"Windows 10";1;?;3.2;1
"Windows 7";1;?;0.75;1
"Android";1;?;0.5;1
"Windows XP";1;?;0;1
"amount of selected";4;?;4.5;4
"total";4;?;4.5;4