condition mean min max ZT0-3 290.54776 290.54776 290.54776 ZT4-7 119.4765 119.4765 119.4765 ZT8-11 110.059914 110.059914 110.059914 ZT12-15 128.44259399999999 128.44259399999999 128.44259399999999 ZT16-19 48.6634625 48.6634625 48.6634625 ZT20-23 30.136453 30.136453 30.136453