Here are some number showing ONLY interior removals: https://object.cato.org/sites/cato.org/files/wp-content/uplo...
But yes border removals also jumped as well.. Maybe there is already a wall there? Here is a breakdown of deportations by three categories (border, interior and unknown) https://object.cato.org/sites/cato.org/files/wp-content/uplo...
Certainly much of this is due to better tracking (dimishing of the unknown category), tighter enforcement, and more efficiency, but none of those arguments dispute the trend of higher deportations under Obama simply because it doesn't fit the overall narrative of Obama as a "compassionate" president.
They are only paid to care about it or even be aware of it if it suits the needs of their designated group of oligarchs.
Coulter citation:
http://www.latimes.com/nation/la-na-obama-deportations-20140...