condition mean min max ZT0-3 5648.9 5648.9 5648.9 ZT4-7 4888.4 4888.4 4888.4 ZT8-11 4269.0 4269.0 4269.0 ZT12-15 4139.6 4139.6 4139.6 ZT16-19 5203.7 5203.7 5203.7 ZT20-23 5945.9 5945.9 5945.9