condition mean min max ZT0-3 25.080701 25.080701 25.080701 ZT4-7 24.881199000000002 24.881199000000002 24.881199000000002 ZT8-11 25.754808 25.754808 25.754808 ZT12-15 26.44307 26.44307 26.44307 ZT16-19 26.8134045 26.8134045 26.8134045 ZT20-23 21.341992 21.341992 21.341992