condition mean min max ZT0-3 334.15 334.15 334.15 ZT4-7 263.3 263.3 263.3 ZT8-11 333.95000000000005 333.95000000000005 333.95000000000005 ZT12-15 323.15 323.15 323.15 ZT16-19 405.70000000000005 405.70000000000005 405.70000000000005 ZT20-23 396.45 396.45 396.45