You need to attach the chart. We have no idea of knowing what time period of immigration you're referring to. However, generally immigrants have gravitated towards jobs that involved skilled or unskilled labor, like manufacturing.
In the debate over the ratification of the U.S constitution, a
Federalist would have argued that the Articles of Confederation were far
too weak, and needed to be replaced with a stronger document.
The British believed that by preserving official documents it would be easier for them or any other persons to know about the decisions taken in the past.