condition mean min max ZT0-3 4269.5 4269.5 4269.5 ZT4-7 3166.7 3166.7 3166.7 ZT8-11 3817.65 3817.65 3817.65 ZT12-15 3616.5 3616.5 3616.5 ZT16-19 3387.8 3387.8 3387.8 ZT20-23 3713.95 3713.95 3713.95