Here’s how much and how fast apprehensions at the border change

The border wall is at the center of the partial federal government shutdown, now the longest in U.S. history. President Trump is insisting on billions of dollars to build a wall on the U.S.-Mexico border before he reopens the government.
How has the current wall worked to secure the border? How many people has it deterred?
Funding and technology for security along the southern border has increased nearly every year for the past 15 and been effective. The number of people listed by the U.S. Borde