condition mean min max ZT0-3 263.15 263.15 263.15 ZT4-7 324.1 324.1 324.1 ZT8-11 308.7 308.7 308.7 ZT12-15 319.6 319.6 319.6 ZT16-19 249.5 249.5 249.5 ZT20-23 292.65 292.65 292.65