Southwest Border Migration FY2018
During the month of January, CBP saw a 12 percent decrease in individuals apprehended while trying to enter the country illegally in between established ports of entry, and in those presenting themselves for entry, without proper documentation, along our Southwest border. This is typical of the migration patterns in the month of January. Based on historic data, migration patterns have shown a decrease in apprehensions and entry attempts in the month of January since FY 2012.
https://www.cbp.gov/newsroom/stats/sw-border-migration