condition mean min max ZT0-3 12124.7 12124.7 12124.7 ZT4-7 13414.4 13414.4 13414.4 ZT8-11 13739.900000000001 13739.900000000001 13739.900000000001 ZT12-15 13716.3 13716.3 13716.3 ZT16-19 12388.400000000001 12388.400000000001 12388.400000000001 ZT20-23 11338.900000000001 11338.900000000001 11338.900000000001