condition mean min max ZT0-3 0.0 0.0 0.0 ZT4-7 0.0 0.0 0.0 ZT8-11 0.02608385 0.02608385 0.02608385 ZT12-15 0.0318566 0.0318566 0.0318566 ZT16-19 0.0 0.0 0.0 ZT20-23 0.01835342 0.01835342 0.01835342