condition mean min max ZT0-3 624.9 624.9 624.9 ZT4-7 498.0 498.0 498.0 ZT8-11 448.85 448.85 448.85 ZT12-15 430.4 430.4 430.4 ZT16-19 647.5 647.5 647.5 ZT20-23 660.3 660.3 660.3