condition mean min max ZT0-3 391.35 391.35 391.35 ZT4-7 428.5 428.5 428.5 ZT8-11 448.85 448.85 448.85 ZT12-15 545.0 545.0 545.0 ZT16-19 529.05 529.05 529.05 ZT20-23 443.95000000000005 443.95000000000005 443.95000000000005