condition mean min max ZT0-3 0.009875033333333333 0.0 0.01528265 ZT4-7 0.01454715 0.01454715 0.01454715 ZT8-11 0.01478565 0.01478565 0.01478565 ZT12-15 0.007189675 0.0 0.01437935 ZT16-19 0.014281 0.014281 0.014281 ZT20-23 0.0626915 0.0626915 0.0626915