condition mean min max ZT0-3 61.571912 61.571912 61.571912 ZT4-7 94.13581099999999 94.13581099999999 94.13581099999999 ZT8-11 87.5830825 87.5830825 87.5830825 ZT12-15 72.48311949999999 72.48311949999999 72.48311949999999 ZT16-19 102.913209 102.913209 102.913209 ZT20-23 110.64280250000002 110.64280250000002 110.64280250000002