condition mean min max ZT0-3 2296.5 2296.5 2296.5 ZT4-7 2024.5 2024.5 2024.5 ZT8-11 2039.0 2039.0 2039.0 ZT12-15 2097.05 2097.05 2097.05 ZT16-19 2262.45 2262.45 2262.45 ZT20-23 2561.05 2561.05 2561.05