condition mean min max ZT0-3 133.45 133.45 133.45 ZT4-7 128.3 128.3 128.3 ZT8-11 140.05 140.05 140.05 ZT12-15 121.1 121.1 121.1 ZT16-19 104.65 104.65 104.65 ZT20-23 109.6 109.6 109.6