condition mean min max ZT0-3 0.00781570275 0.0 0.0156314055 ZT4-7 0.0 0.0 0.0 ZT8-11 0.15263988425 0.0 0.3052797685 ZT12-15 0.86373076325 0.6089884155 1.118473111 ZT16-19 0.8617889702499999 0.720869469 1.0027084714999999 ZT20-23 0.212484104 0.0692364635 0.3557317445