condition mean min max ZT0-3 0.01009945 0.01009945 0.01009945 ZT4-7 0.01405615 0.01405615 0.01405615 ZT8-11 0.02277655 0.02277655 0.02277655 ZT12-15 0.01390865 0.01390865 0.01390865 ZT16-19 0.0 0.0 0.0 ZT20-23 0.0 0.0 0.0