condition mean min max ZT0-3 355.45000000000005 355.45000000000005 355.45000000000005 ZT4-7 284.2 284.2 284.2 ZT8-11 396.9 396.9 396.9 ZT12-15 433.29999999999995 433.29999999999995 433.29999999999995 ZT16-19 458.8 458.8 458.8 ZT20-23 412.0 412.0 412.0