condition mean min max ZT0-3 1005.75 1005.75 1005.75 ZT4-7 935.8 935.8 935.8 ZT8-11 1040.35 1040.35 1040.35 ZT12-15 694.35 694.35 694.35 ZT16-19 877.5 877.5 877.5 ZT20-23 1033.9 1033.9 1033.9