Unauthorized Trend at New Uncertain High Details of Trend Uncertain High Millions of Unauthorized Migrants Living in the U.S.
Because of inherent uncertainties in the residual technique, the difference in successive annual estimates of the unauthorized population is not a valid measure of growth. However, it is possible to use differences taken over longer intervals to measure growth. Thus, the average annual change over the 2000-2004 period is about 485,000 or 10.3 million minus 8.4 million divided by 4. For the entire decade of the 1990s, growth averaged just about 500,000 per year. However, there are a number of data sources that point to substantially larger growth increments at the very end of the 1990s (and possibly at the end of the 1980s and the very early 1990s).
Unauthorized Trend at New Uncertain High  | Details of Trend Uncertain High  | Millions of Unauthorized Migrants Living in the U.S.  | 10.3  | (2004)  | 8.4  | 5  | 3.9  | 3  | 2.5  | 4-80 1-82  | 6-86  | 6-89 10-92 10 96  | 3-04  | 4-00 