[Will88]

The numbers in the table are cumulative, about 40 million legal immigrants added to our population since pre-1990 through 2010?

[kabar]

Yep. Right now there are about 45 million foreign-born in this country. These are cummulative numbers since immigrants die or return home while others enter. This is a net figure. The last decade was the highest in US history.

In 1970 one in 21 was foreign-born, today it is one in 8, the highest in 90 years; and within a decade it will be one in 7, the highest in our history.