The correct answer to this open question is the following.
Unfortunately, you did not attach the chart. Without the chart, we do not know what are its contents.
However, trying to help you we can comment on the following.
The generalization about the Roman Empire that can be made based on the information is the following: "Rome traded only within the Empire."
This is correct because the information of the chart includes different regions of the empire such as Egypt, Greece, Britain, and Carthage.
Among the most important goods traded in Rome throughout the empire were linen, tin, marble, oil, and other raw materials and natural resources.
The Roman Empire was so vast that it could trade only within its dominions and made great profits. That is the reason why the Roman Empire built good roads to connect many regions within the empire.