condition mean min max ZT0-3 122.15 122.15 122.15 ZT4-7 287.8 287.8 287.8 ZT8-11 327.55 327.55 327.55 ZT12-15 305.3 305.3 305.3 ZT16-19 161.4 161.4 161.4 ZT20-23 109.0 109.0 109.0