condition mean min max ZT0-3 1.3615369107042499 7.22695e-07 4.06708 ZT4-7 1.53027885 1.53027885 1.53027885 ZT8-11 0.11764708500000001 0.11764708500000001 0.11764708500000001 ZT12-15 0.02964417335993 8.467198599999999e-07 0.0592875 ZT16-19 3.1889862 3.1889862 3.1889862 ZT20-23 1.741485e-09 1.741485e-09 1.741485e-09