condition mean min max ZT0-3 0.018000302666666666 0.0 0.03600060533333333 ZT4-7 0.0092818105 0.0 0.018563621 ZT8-11 0.0 0.0 0.0 ZT12-15 0.046528419333333335 0.037332343999999996 0.05572449466666667 ZT16-19 0.0 0.0 0.0 ZT20-23 0.0 0.0 0.0