condition mean min max ZT0-3 224.03775 212.303 235.77249999999998 ZT4-7 124.425 124.425 124.425 ZT8-11 69.25545 69.25545 69.25545 ZT12-15 0 0 0 ZT16-19 107.875 107.875 107.875 ZT20-23 139.95850000000002 139.95850000000002 139.95850000000002