condition mean min max ZT0-3 0.0 0.0 0.0 ZT4-7 0.051892572500000005 0.0 0.10378514500000001 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