condition mean min max ZT0-3 67.3 67.3 67.3 ZT4-7 97.4 97.4 97.4 ZT8-11 103.35000000000001 103.35000000000001 103.35000000000001 ZT12-15 137.7 137.7 137.7 ZT16-19 98.14999999999999 98.14999999999999 98.14999999999999 ZT20-23 118.5 118.5 118.5