condition mean min max ZT0-3 483.8 483.8 483.8 ZT4-7 423.0 423.0 423.0 ZT8-11 404.5 404.5 404.5 ZT12-15 472.55 472.55 472.55 ZT16-19 486.9 486.9 486.9 ZT20-23 503.85 503.85 503.85