condition mean min max ZT0-3 0.04111533333333333 0.04111533333333333 0.04111533333333333 ZT4-7 0.0 0.0 0.0 ZT8-11 0.0 0.0 0.0 ZT12-15 0.08759499999999999 0.08759499999999999 0.08759499999999999 ZT16-19 0.0 0.0 0.0 ZT20-23 0.0 0.0 0.0