condition mean min max ZT0-3 0.009637699999999999 0.0095165 0.0097589 ZT4-7 0.019530449999999998 0.019530449999999998 0.019530449999999998 ZT8-11 0.00991625 0.00991625 0.00991625 ZT12-15 0 0 0 ZT16-19 0.0095674 0.0095674 0.0095674 ZT20-23 0.0289442 0.0289442 0.0289442