The whole U.S. population was enumerated by country of birth between 1850 and 1930 and again from 1960 to the present day .
Since 1850 , the United States enumerated its population by their country of birth of its population .
The whole United States population was enumerated by country of birth between 1850 and 1930 and again from 1960 to the present day .
Since 1850 , the United States enumerated its population by their country of birth of its population .