condition mean min max ZT0-3 0.25962 0.0 0.77886 ZT4-7 0.0 0.0 0.0 ZT8-11 1.608705 1.608705 1.608705 ZT12-15 0.4009225 0.0 0.801845 ZT16-19 1.52548 1.52548 1.52548 ZT20-23 0.0 0.0 0.0