condition mean min max ZT0-3 0.44636305425 0.2995193545 0.593206754 ZT4-7 2.89279262925 1.4306263055 4.354958953000001 ZT8-11 12.04214679175 10.281123753000001 13.8031698305 ZT12-15 14.3141077425 13.692344525 14.935870959999999 ZT16-19 12.194585165 12.08293081 12.30623952 ZT20-23 11.946919107500001 11.55720301 12.336635205