condition mean min max ZT0-3 1033.95 1033.95 1033.95 ZT4-7 968.6 968.6 968.6 ZT8-11 970.45 970.45 970.45 ZT12-15 732.3 732.3 732.3 ZT16-19 564.2 564.2 564.2 ZT20-23 632.8 632.8 632.8