condition mean min max ZT0-3 0.6309265 0.6309265 0.6309265 ZT4-7 0.3389945 0.3389945 0.3389945 ZT8-11 0.183576 0.183576 0.183576 ZT12-15 0.2973965 0.2973965 0.2973965 ZT16-19 1.086309 1.086309 1.086309 ZT20-23 0.6340005 0.6340005 0.6340005