When I immigrated here in 1971 the immigrants numbered about 10% but in those days there were better controls on the presence of aliens We had to register every January The forms were sent to our last known street address and had to be signed in front of a local government official, the postmaster if we werent near an immigration office...
Now with thousands of illegal aliens pouring through our borders unnumbered who knows ...
Just a couple hours ago, I saw the USA foreign born number for 1970.
It was 6.6%.