condition mean min max ZT0-3 4426.3 4426.3 4426.3 ZT4-7 5346.7 5346.7 5346.7 ZT8-11 4512.6 4512.6 4512.6 ZT12-15 4407.5 4407.5 4407.5 ZT16-19 4248.85 4248.85 4248.85 ZT20-23 4406.1 4406.1 4406.1