condition mean min max ZT0-3 112.283175 104.91785 119.64850000000001 ZT4-7 110.6445 110.6445 110.6445 ZT8-11 88.22409999999999 88.22409999999999 88.22409999999999 ZT12-15 0 0 0 ZT16-19 120.0175 120.0175 120.0175 ZT20-23 128.5775 128.5775 128.5775