How many times does this report make reference to the idea that those leaving the United States are "returning" to their original "homeland" of Mexico?

The correct answer to this open question is the following.

Unfortunately, you did not attach the report. So we don't know what is the content of that report.

However, trying to help you we can comment on the following.

Most of the Mexican and Central American immigrants that are caught by the border patrol are returned to their former countries. In the case of Mexicans, they are sent to México.

According to some reports made by the Office of US Customs, the US Administration that sent more illegal Mexicans in the US to their native country was teh Barack Obama's administration.

These immigrants have their families in many states of México, as is the case of the states of Michoacan, Puebla, Guerrero, Oaxaca, and Zacatecas.

the answer to fill in the blank in this question would be the word resource, it is defined as the money, material or people (since human resource is a very valuable good) that a company or a person has at disposition (meaning they can use the resource as they see fit), to be able to complete a task or achieve a goal.  

a plantation economy is an economy based on agricultural mass production, usually of a few commodity crops grown on large farms called plantations. plantation economies rely on the export of cash crops as a source of income.

i hope this : )