condition mean min max ZT0-3 72.560147 72.560147 72.560147 ZT4-7 80.00285149999999 80.00285149999999 80.00285149999999 ZT8-11 78.0737525 78.0737525 78.0737525 ZT12-15 70.85811799999999 70.85811799999999 70.85811799999999 ZT16-19 95.169622 95.169622 95.169622 ZT20-23 90.17901549999999 90.17901549999999 90.17901549999999