condition mean min max ZT0-3 92.455075 92.455075 92.455075 ZT4-7 79.32077000000001 79.32077000000001 79.32077000000001 ZT8-11 86.62155100000001 86.62155100000001 86.62155100000001 ZT12-15 88.6382555 88.6382555 88.6382555 ZT16-19 109.84208149999999 109.84208149999999 109.84208149999999 ZT20-23 107.97842349999999 107.97842349999999 107.97842349999999