condition mean min max ZT0-3 107.2482 101.6104 112.886 ZT4-7 153.25650000000002 153.25650000000002 153.25650000000002 ZT8-11 84.9528 84.9528 84.9528 ZT12-15 0 0 0 ZT16-19 89.63845 89.63845 89.63845 ZT20-23 119.4245 119.4245 119.4245