condition mean min max ZT0-3 0.0 0.0 0.0 ZT4-7 0.0 0.0 0.0 ZT8-11 0.0 0.0 0.0 ZT12-15 0.07270979833333334 0.07258589133333333 0.07283370533333335 ZT16-19 0.0 0.0 0.0 ZT20-23 0.0 0.0 0.0