condition mean min max ZT0-3 8379.15 8379.15 8379.15 ZT4-7 9675.3 9675.3 9675.3 ZT8-11 9491.2 9491.2 9491.2 ZT12-15 10046.05 10046.05 10046.05 ZT16-19 9047.05 9047.05 9047.05 ZT20-23 8553.95 8553.95 8553.95