condition mean min max ZT0-3 130.839 130.839 130.839 ZT4-7 118.381 118.381 118.381 ZT8-11 81.63525 81.63525 81.63525 ZT12-15 86.17765 86.17765 86.17765 ZT16-19 106.03399999999999 106.03399999999999 106.03399999999999 ZT20-23 124.07 124.07 124.07