condition mean min max ZT0-3 111.598 111.598 111.598 ZT4-7 87.3024 87.3024 87.3024 ZT8-11 70.36775 70.36775 70.36775 ZT12-15 81.2792 81.2792 81.2792 ZT16-19 96.43585 96.43585 96.43585 ZT20-23 104.8275 104.8275 104.8275