condition mean min max ZT0-3 0.0 0.0 0.0 ZT4-7 0.02890955 0.02890955 0.02890955 ZT8-11 0.10265360000000001 0.10265360000000001 0.10265360000000001 ZT12-15 0.08952460000000001 0.08952460000000001 0.08952460000000001 ZT16-19 0.05805246666666667 0.05805246666666667 0.05805246666666667 ZT20-23 0.0257024 0.0257024 0.0257024