condition mean min max ZT0-3 480.25 480.25 480.25 ZT4-7 435.9 435.9 435.9 ZT8-11 368.05 368.05 368.05 ZT12-15 574.7 574.7 574.7 ZT16-19 644.05 644.05 644.05 ZT20-23 649.45 649.45 649.45