condition mean min max ZT0-3 0.0 0.0 0.0 ZT4-7 0.020851241999999996 0.0 0.04170248399999999 ZT8-11 0.0 0.0 0.0 ZT12-15 0.023749778333333332 0.0 0.047499556666666665 ZT16-19 0.0 0.0 0.0 ZT20-23 0.0 0.0 0.0