condition mean min max ZT0-3 82.6714 82.6714 82.6714 ZT4-7 130.6795 130.6795 130.6795 ZT8-11 167.166 167.166 167.166 ZT12-15 130.10649999999998 130.10649999999998 130.10649999999998 ZT16-19 68.0087 68.0087 68.0087 ZT20-23 80.7211 80.7211 80.7211