condition mean min max ZT0-3 76.95 76.95 76.95 ZT4-7 81.2 81.2 81.2 ZT8-11 104.2 104.2 104.2 ZT12-15 141.65 141.65 141.65 ZT16-19 84.1 84.1 84.1 ZT20-23 66.4 66.4 66.4