condition mean min max ZT0-3 16.165300000000002 15.988 16.3426 ZT4-7 11.2843 11.2843 11.2843 ZT8-11 13.856549999999999 13.856549999999999 13.856549999999999 ZT12-15 0 0 0 ZT16-19 14.23705 14.23705 14.23705 ZT20-23 12.9707 12.9707 12.9707