condition mean min max ZT0-3 573.1 573.1 573.1 ZT4-7 543.8 543.8 543.8 ZT8-11 622.15 622.15 622.15 ZT12-15 674.85 674.85 674.85 ZT16-19 662.2 662.2 662.2 ZT20-23 569.1 569.1 569.1