condition mean min max ZT0-3 4043.85 4043.85 4043.85 ZT4-7 4030.4 4030.4 4030.4 ZT8-11 3621.3 3621.3 3621.3 ZT12-15 3626.6 3626.6 3626.6 ZT16-19 3632.75 3632.75 3632.75 ZT20-23 4082.8 4082.8 4082.8