condition mean min max ZT0-3 24.75 24.75 24.75 ZT4-7 88.1 88.1 88.1 ZT8-11 16.45 16.45 16.45 ZT12-15 39.05 39.05 39.05 ZT16-19 47.0 47.0 47.0 ZT20-23 52.400000000000006 52.400000000000006 52.400000000000006