condition mean min max ZT0-3 334.0 334.0 334.0 ZT4-7 574.0 574.0 574.0 ZT8-11 562.75 562.75 562.75 ZT12-15 664.9 664.9 664.9 ZT16-19 547.9 547.9 547.9 ZT20-23 479.15000000000003 479.15000000000003 479.15000000000003