condition mean min max ZT0-3 431.15 431.15 431.15 ZT4-7 567.0 567.0 567.0 ZT8-11 598.3 598.3 598.3 ZT12-15 548.8499999999999 548.8499999999999 548.8499999999999 ZT16-19 570.1500000000001 570.1500000000001 570.1500000000001 ZT20-23 460.8 460.8 460.8