condition mean min max ZT0-3 234.45 234.45 234.45 ZT4-7 254.2 254.2 254.2 ZT8-11 266.15 266.15 266.15 ZT12-15 263.0 263.0 263.0 ZT16-19 311.15 311.15 311.15 ZT20-23 273.15 273.15 273.15