condition mean min max ZT0-3 74.85 74.85 74.85 ZT4-7 149.8 149.8 149.8 ZT8-11 113.94999999999999 113.94999999999999 113.94999999999999 ZT12-15 95.94999999999999 95.94999999999999 95.94999999999999 ZT16-19 85.5 85.5 85.5 ZT20-23 87.05000000000001 87.05000000000001 87.05000000000001