condition mean min max ZT0-3 92.993014 92.993014 92.993014 ZT4-7 92.33437749999999 92.33437749999999 92.33437749999999 ZT8-11 114.66196199999999 114.66196199999999 114.66196199999999 ZT12-15 92.3759565 92.3759565 92.3759565 ZT16-19 120.00266350000001 120.00266350000001 120.00266350000001 ZT20-23 90.7142285 90.7142285 90.7142285