condition mean min max ZT0-3 117.21924999999999 114.3055 120.133 ZT4-7 104.8365 104.8365 104.8365 ZT8-11 126.9845 126.9845 126.9845 ZT12-15 0 0 0 ZT16-19 160.7585 160.7585 160.7585 ZT20-23 143.0685 143.0685 143.0685