condition mean min max ZT0-3 52.65 52.65 52.65 ZT4-7 103.9 103.9 103.9 ZT8-11 31.9 31.9 31.9 ZT12-15 22.75 22.75 22.75 ZT16-19 88.85 88.85 88.85 ZT20-23 45.949999999999996 45.949999999999996 45.949999999999996