In the first 3 quarters of 2017, people originally from Mexico accounted 16.5% of the total of all the people who became naturalized citizens

In the first 3 quarters of 2017, people originally from Mexico accounted for 77,655 of all the people who became naturalized citizens.
That is approximately 16.5% of the total.
Another large segment was people originally from Asia who accounted for 35.1% of the total.
The smallest representation was people origination from Republic of Guinea-Bissau (in West Africa) who only had 13 people become naturalized U.S. citizens.
We now call these folks our American brothers and sisters.