condition mean min max ZT0-3 480.25 480.25 480.25 ZT4-7 327.3 327.3 327.3 ZT8-11 322.9 322.9 322.9 ZT12-15 287.4 287.4 287.4 ZT16-19 362.70000000000005 362.70000000000005 362.70000000000005 ZT20-23 485.7 485.7 485.7