condition mean min max ZT0-3 0.03829698216666667 5.04015e-05 0.114779 ZT4-7 8.0734e-05 8.0734e-05 8.0734e-05 ZT8-11 0.0527905 0.0527905 0.0527905 ZT12-15 0.20365725 0.057217 0.3500975 ZT16-19 0.0 0.0 0.0 ZT20-23 0.230064486 0.230064486 0.230064486