condition mean min max ZT0-3 0.021174600000000002 0.021174600000000002 0.021174600000000002 ZT4-7 0.22941599999999998 0.22941599999999998 0.22941599999999998 ZT8-11 0.0 0.0 0.0 ZT12-15 0.054334 0.054334 0.054334 ZT16-19 0.05113 0.05113 0.05113 ZT20-23 0.0 0.0 0.0