condition mean min max ZT0-3 0.0 0.0 0.0 ZT4-7 0.0 0.0 0.0 ZT8-11 0.015006358333333332 0.015006358333333332 0.015006358333333332 ZT12-15 0.0 0.0 0.0 ZT16-19 0.0066300000000000005 0.0066300000000000005 0.0066300000000000005 ZT20-23 0.0 0.0 0.0