condition mean min max ZT0-3 0.5368599999999999 0.36176149999999996 0.7119584999999999 ZT4-7 0.39312250000000004 0.39312250000000004 0.39312250000000004 ZT8-11 0.1625535 0.1625535 0.1625535 ZT12-15 0 0 0 ZT16-19 0.504155 0.504155 0.504155 ZT20-23 0.4547295 0.4547295 0.4547295