condition mean min max ZT0-3 117.875 117.875 117.875 ZT4-7 132.838 132.838 132.838 ZT8-11 70.2599 70.2599 70.2599 ZT12-15 46.715450000000004 46.715450000000004 46.715450000000004 ZT16-19 102.5398 102.5398 102.5398 ZT20-23 82.8909 82.8909 82.8909