condition mean min max ZT0-3 221.8825 221.8825 221.8825 ZT4-7 255.5285 255.5285 255.5285 ZT8-11 250.933 250.933 250.933 ZT12-15 200.5945 200.5945 200.5945 ZT16-19 172.3225 172.3225 172.3225 ZT20-23 210.549 210.549 210.549