condition mean min max ZT0-3 1524.55 1524.55 1524.55 ZT4-7 1412.9 1412.9 1412.9 ZT8-11 1125.35 1125.35 1125.35 ZT12-15 1070.8 1070.8 1070.8 ZT16-19 1280.65 1280.65 1280.65 ZT20-23 1273.1 1273.1 1273.1