condition mean min max ZT0-3 377.211 377.211 377.211 ZT4-7 391.6625 391.6625 391.6625 ZT8-11 312.36400000000003 312.36400000000003 312.36400000000003 ZT12-15 329.1085 329.1085 329.1085 ZT16-19 339.9135 339.9135 339.9135 ZT20-23 386.28 386.28 386.28