condition mean min max ZT0-3 77.8997 77.8997 77.8997 ZT4-7 51.1865 51.1865 51.1865 ZT8-11 66.3194 66.3194 66.3194 ZT12-15 82.55005 82.55005 82.55005 ZT16-19 106.27865 106.27865 106.27865 ZT20-23 106.4645 106.4645 106.4645