condition mean min max ZT0-3 369.3 369.3 369.3 ZT4-7 358.0 358.0 358.0 ZT8-11 247.3 247.3 247.3 ZT12-15 259.5 259.5 259.5 ZT16-19 283.5 283.5 283.5 ZT20-23 354.79999999999995 354.79999999999995 354.79999999999995