condition mean min max ZT0-3 0.010589445749999999 0.0 0.021178891499999998 ZT4-7 0.10108350699999999 0.0373216215 0.1648453925 ZT8-11 0.22438169 0.217908719 0.230854661 ZT12-15 0.4449065105 0.42074635 0.46906667100000005 ZT16-19 0.08236324725 0.0449776905 0.11974880399999999 ZT20-23 0.07514722925 0.060961102 0.0893333565