condition mean min max ZT0-3 0.05309241375 0.0 0.1061848275 ZT4-7 0.09124470549999998 0.0 0.18248941099999996 ZT8-11 0.08541001566666667 0.0 0.17082003133333334 ZT12-15 0.0 0.0 0.0 ZT16-19 0.0810058945 0.045403887 0.116607902 ZT20-23 0.034852413000000006 0.0 0.06970482600000001