condition mean min max ZT0-3 26.585375 25.76095 27.4098 ZT4-7 29.959899999999998 29.959899999999998 29.959899999999998 ZT8-11 41.576049999999995 41.576049999999995 41.576049999999995 ZT12-15 0 0 0 ZT16-19 45.2678 45.2678 45.2678 ZT20-23 33.6674 33.6674 33.6674