condition mean min max ZT0-3 0.039547399999999996 0.039547399999999996 0.039547399999999996 ZT4-7 0.0499282 0.0499282 0.0499282 ZT8-11 0.0 0.0 0.0 ZT12-15 0.05791715 0.05791715 0.05791715 ZT16-19 0.04351895 0.04351895 0.04351895 ZT20-23 0.0109043 0.0109043 0.0109043