condition mean min max ZT0-3 0.14766300000000002 0.0 0.442989 ZT4-7 0.0 0.0 0.0 ZT8-11 0.0 0.0 0.0 ZT12-15 0.39124349999999997 0.3383585 0.4441285 ZT16-19 0.0 0.0 0.0 ZT20-23 0.0 0.0 0.0