condition mean min max ZT0-3 99.090749 99.090749 99.090749 ZT4-7 54.447606500000006 54.447606500000006 54.447606500000006 ZT8-11 61.47905900000001 61.47905900000001 61.47905900000001 ZT12-15 56.6790245 56.6790245 56.6790245 ZT16-19 102.35837699999999 102.35837699999999 102.35837699999999 ZT20-23 103.628483 103.628483 103.628483