condition mean min max ZT0-3 810.55 810.55 810.55 ZT4-7 638.2 638.2 638.2 ZT8-11 694.95 694.95 694.95 ZT12-15 674.9000000000001 674.9000000000001 674.9000000000001 ZT16-19 673.75 673.75 673.75 ZT20-23 835.85 835.85 835.85