condition mean min max ZT0-3 560.05 560.05 560.05 ZT4-7 399.3 399.3 399.3 ZT8-11 368.2 368.2 368.2 ZT12-15 433.9 433.9 433.9 ZT16-19 556.35 556.35 556.35 ZT20-23 537.5 537.5 537.5