condition mean min max ZT0-3 35.06845 32.30345 37.83345 ZT4-7 34.9597 34.9597 34.9597 ZT8-11 54.68105 54.68105 54.68105 ZT12-15 0 0 0 ZT16-19 52.2541 52.2541 52.2541 ZT20-23 35.62635 35.62635 35.62635