condition mean min max ZT0-3 441.15 441.15 441.15 ZT4-7 607.8 607.8 607.8 ZT8-11 600.0 600.0 600.0 ZT12-15 684.7 684.7 684.7 ZT16-19 640.4 640.4 640.4 ZT20-23 531.95 531.95 531.95