condition mean min max ZT0-3 90.693602 90.693602 90.693602 ZT4-7 98.2097785 98.2097785 98.2097785 ZT8-11 91.14546250000001 91.14546250000001 91.14546250000001 ZT12-15 95.53288 95.53288 95.53288 ZT16-19 101.155141 101.155141 101.155141 ZT20-23 83.82288199999999 83.82288199999999 83.82288199999999