condition mean min max ZT0-3 47.5478 47.5478 47.5478 ZT4-7 36.0099 36.0099 36.0099 ZT8-11 36.63635 36.63635 36.63635 ZT12-15 73.5043 73.5043 73.5043 ZT16-19 74.3183 74.3183 74.3183 ZT20-23 59.7752 59.7752 59.7752