condition mean min max ZT0-3 71.7543 59.30525 84.88390000000001 ZT4-7 95.25555 95.25555 95.25555 ZT8-11 104.7653 104.7653 104.7653 ZT12-15 121.48575 120.31 122.66149999999999 ZT16-19 97.1543 97.1543 97.1543 ZT20-23 87.76165 87.76165 87.76165