condition mean min max ZT0-3 104.41923333333334 96.99719999999999 109.3235 ZT4-7 105.0615 105.0615 105.0615 ZT8-11 77.04005000000001 77.04005000000001 77.04005000000001 ZT12-15 88.19662500000001 85.89825 90.495 ZT16-19 86.62254999999999 86.62254999999999 86.62254999999999 ZT20-23 82.991 82.991 82.991