condition mean min max ZT0-3 65.9014 65.9014 65.9014 ZT4-7 32.84775 32.84775 32.84775 ZT8-11 32.559400000000004 32.559400000000004 32.559400000000004 ZT12-15 46.6726 46.6726 46.6726 ZT16-19 81.6851 81.6851 81.6851 ZT20-23 75.4223 75.4223 75.4223