For reference purposes, could you post some sources links, or have they already been posted?
Here’s one that hasnt been scrubbed yet
https://www.factcheck.org/2014/07/surge-of-unaccompanied-children/
Actual apprehensions reported
https://www.cbp.gov/newsroom/stats/southwest-border-unaccompanied-children/fy-2016
Note dates and trends
https://www.rt.com/usa/record-undocumented-minors-entering-us-441/
https://cis.org/Report/Welcoming-Unaccompanied-Alien-Children-United-States
Its not just central america, haiti is a hotbed
http://www.ijdh.org/2010/10/topics/womens-issues/sex-trafficking-of-haitian-kids-exploding/