condition mean min max ZT0-3 266.15 266.15 266.15 ZT4-7 112.9 112.9 112.9 ZT8-11 249.0 249.0 249.0 ZT12-15 384.15 384.15 384.15 ZT16-19 295.65 295.65 295.65 ZT20-23 240.1 240.1 240.1