condition mean min max ZT0-3 710.05 710.05 710.05 ZT4-7 630.6 630.6 630.6 ZT8-11 649.85 649.85 649.85 ZT12-15 739.15 739.15 739.15 ZT16-19 761.25 761.25 761.25 ZT20-23 760.65 760.65 760.65