condition mean min max ZT0-3 0.07143533333333334 0.0 0.214306 ZT4-7 0.0 0.0 0.0 ZT8-11 0.2155875 0.2155875 0.2155875 ZT12-15 0.0 0.0 0.0 ZT16-19 0.0 0.0 0.0 ZT20-23 0.0 0.0 0.0