condition mean min max ZT0-3 187.977 187.977 187.977 ZT4-7 150.816 150.816 150.816 ZT8-11 100.75550000000001 100.75550000000001 100.75550000000001 ZT12-15 107.9455 107.9455 107.9455 ZT16-19 142.9475 142.9475 142.9475 ZT20-23 159.0855 159.0855 159.0855