condition mean min max ZT0-3 362.7 362.7 362.7 ZT4-7 458.1 458.1 458.1 ZT8-11 398.5 398.5 398.5 ZT12-15 406.55 406.55 406.55 ZT16-19 387.95000000000005 387.95000000000005 387.95000000000005 ZT20-23 413.35 413.35 413.35