condition mean min max ZT0-3 3331.5 3331.5 3331.5 ZT4-7 9633.0 9633.0 9633.0 ZT8-11 7342.0 7342.0 7342.0 ZT12-15 2285.9 2285.9 2285.9 ZT16-19 381.6 381.6 381.6 ZT20-23 827.2 827.2 827.2