condition mean min max ZT0-3 97.0 97.0 97.0 ZT4-7 80.5 80.5 80.5 ZT8-11 68.05 68.05 68.05 ZT12-15 64.05 64.05 64.05 ZT16-19 120.05 120.05 120.05 ZT20-23 105.8 105.8 105.8