condition mean min max ZT0-3 413.95 413.95 413.95 ZT4-7 676.2 676.2 676.2 ZT8-11 849.75 849.75 849.75 ZT12-15 1067.95 1067.95 1067.95 ZT16-19 810.25 810.25 810.25 ZT20-23 573.85 573.85 573.85