condition mean min max ZT0-3 37.600350000000006 37.5957 37.605000000000004 ZT4-7 31.58475 31.58475 31.58475 ZT8-11 75.7705 75.7705 75.7705 ZT12-15 0 0 0 ZT16-19 88.8357 88.8357 88.8357 ZT20-23 53.679649999999995 53.679649999999995 53.679649999999995