condition mean min max ZT0-3 0.46842650199999997 0.44791296599999997 0.48894003799999997 ZT4-7 0.71802110125 0.5710859585 0.864956244 ZT8-11 2.462113196 1.646598853 3.277627539 ZT12-15 4.6706512435 3.8501838229999996 5.491118664 ZT16-19 1.6656025485 1.446240558 1.8849645389999998 ZT20-23 1.711335077 1.5220892369999999 1.900580917