condition mean min max ZT0-3 0.0070338025 0.0 0.014067605 ZT4-7 0.3236248895 0.183036081 0.464213698 ZT8-11 0.88574830875 0.6868392435 1.0846573739999998 ZT12-15 1.23278624 1.0654370210000002 1.400135459 ZT16-19 0.56202253975 0.48411456750000004 0.6399305120000001 ZT20-23 0.620825686 0.595889809 0.645761563