condition mean min max ZT0-3 0.0 0.0 0.0 ZT4-7 0.0 0.0 0.0 ZT8-11 0.0 0.0 0.0 ZT12-15 0.24642399999999998 0.0 0.49284799999999995 ZT16-19 0.6779945 0.6779945 0.6779945 ZT20-23 0.0 0.0 0.0