condition mean min max ZT0-3 367.54999999999995 367.54999999999995 367.54999999999995 ZT4-7 277.5 277.5 277.5 ZT8-11 329.25 329.25 329.25 ZT12-15 362.45000000000005 362.45000000000005 362.45000000000005 ZT16-19 321.0 321.0 321.0 ZT20-23 322.2 322.2 322.2