Calculations from the Center for Migration Studies and the Pew Research Center indicate 1.5 to 1.7 million aliens joined the illegal population from 2009 to 2013 — either overstaying a temporary visa or sneaking into the country, according to a Center for Immigration Studies report out Monday morning.

The immigration watchdog’s analysis of Census Bureau data also showed that an additional 790,000 illegals entered from the middle of 2013 to May of 2015, for a total of 2.5 million new illegal immigrants since Obama took office in January of 2009. That is a rate of 300,000 to 400,000 a year.