condition mean min max ZT0-3 0.43679833333333334 0.0 0.65578 ZT4-7 0.641675 0.641675 0.641675 ZT8-11 0.0 0.0 0.0 ZT12-15 0.7327325 0.0 1.465465 ZT16-19 0.326485 0.326485 0.326485 ZT20-23 0.0 0.0 0.0