condition mean min max ZT0-3 4369.75 4369.75 4369.75 ZT4-7 7982.8 7982.8 7982.8 ZT8-11 7887.450000000001 7887.450000000001 7887.450000000001 ZT12-15 6200.85 6200.85 6200.85 ZT16-19 5136.95 5136.95 5136.95 ZT20-23 4405.15 4405.15 4405.15