condition mean min max ZT0-3 617.9390000000001 617.9390000000001 617.9390000000001 ZT4-7 503.298 503.298 503.298 ZT8-11 411.0075 411.0075 411.0075 ZT12-15 450.5105 450.5105 450.5105 ZT16-19 601.858 601.858 601.858 ZT20-23 646.8589999999999 646.8589999999999 646.8589999999999