condition mean min max ZT0-3 50.1622 50.1622 50.1622 ZT4-7 30.9665 30.9665 30.9665 ZT8-11 47.99255 47.99255 47.99255 ZT12-15 107.35495 107.35495 107.35495 ZT16-19 101.9065 101.9065 101.9065 ZT20-23 78.00335000000001 78.00335000000001 78.00335000000001