condition mean min max ZT0-3 43.6114 43.6114 43.6114 ZT4-7 39.578599999999994 39.578599999999994 39.578599999999994 ZT8-11 36.3093 36.3093 36.3093 ZT12-15 39.94745 39.94745 39.94745 ZT16-19 44.9582 44.9582 44.9582 ZT20-23 40.8679 40.8679 40.8679