condition mean min max ZT0-3 95.66286739 95.07330457 96.25243021 ZT4-7 28.88036763 22.36198951 35.398745749999996 ZT8-11 20.8704488275 17.483735505 24.25716215 ZT12-15 23.9488461975 23.677728905 24.21996349 ZT16-19 29.037646025 26.194102105 31.881189945 ZT20-23 46.27507555 42.25849354 50.29165756