condition mean min max ZT0-3 0.3151 0.080327 0.7825095 ZT4-7 1.9185249999999998 1.9185249999999998 1.9185249999999998 ZT8-11 1.2411975 1.2411975 1.2411975 ZT12-15 0.25766374999999997 0.0899125 0.425415 ZT16-19 0.0 0.0 0.0 ZT20-23 0.087129 0.087129 0.087129