condition mean min max ZT0-3 453.95000000000005 453.95000000000005 453.95000000000005 ZT4-7 453.2 453.2 453.2 ZT8-11 363.5 363.5 363.5 ZT12-15 360.54999999999995 360.54999999999995 360.54999999999995 ZT16-19 415.95000000000005 415.95000000000005 415.95000000000005 ZT20-23 438.95000000000005 438.95000000000005 438.95000000000005