condition mean min max ZT0-3 130.95 130.95 130.95 ZT4-7 126.2 126.2 126.2 ZT8-11 134.55 134.55 134.55 ZT12-15 130.3 130.3 130.3 ZT16-19 137.6 137.6 137.6 ZT20-23 162.9 162.9 162.9