condition mean min max ZT0-3 0.09414099999999999 0.0 0.18828199999999998 ZT4-7 0.14033700000000002 0.14033700000000002 0.14033700000000002 ZT8-11 0.0 0.0 0.0 ZT12-15 0.06485433333333333 0.0 0.12970866666666667 ZT16-19 0.0 0.0 0.0 ZT20-23 0.0 0.0 0.0