condition mean min max ZT0-3 92.5654 92.5654 92.5654 ZT4-7 60.998450000000005 60.998450000000005 60.998450000000005 ZT8-11 30.016750000000002 30.016750000000002 30.016750000000002 ZT12-15 30.33915 30.33915 30.33915 ZT16-19 50.43666666666667 50.43666666666667 50.43666666666667 ZT20-23 75.68090000000001 75.68090000000001 75.68090000000001