New data out of Arizona is showing some shocking results about the number of crimes committed by illegal immigrants vs those born and raised in America.

The new report released by the Crime Prevention Research Center (CPRC) shows that data gathered from 1985 to 2017 found that despite the number of young, illegal immigrants making up a small percentage of the state, they commit a disproportionate amount of crime.

What’s more, this group commits crimes at “twice the rate of young U.S. citizens.”:

Young convicts are especially likely to be undocumented immigrants. While undocumented immigrants from 15 to 35 years of age make up slightly over two percent of the Arizona population, they make up about eight percent of the prison population. Even after adjusting for the fact that young people commit crime at higher rates, young undocumented immigrants commit crime at twice the rate of young U.S. citizens. These undocumented immigrants also tend to commit more serious crimes.

If the figures were extrapolated to cover the entire U.S., things begin to look grim:

If undocumented immigrants committed crime nationally as they do in Arizona, in 2016 they would have been responsible for over 1,000 more murders, 5,200 rapes, 8,900 robberies, 25,300 aggravated assaults, and 26,900 burglaries.

“There appears to be a huge difference between the two groups,” said CPRC President John Lott, according to the Washington Times. “The type of person who goes through the process to legally immigrate in the United States appears to be very law-abiding versus even the U.S.-born population. The reverse is true for undocumented immigrants — they are committing crimes, and more serious crimes.”

According to the Washington Times, Lott said that the 18 to 35 age group was important due to the ongoing attempts to legalize “Dreamers.” According to Lott, the Arizona data showed that age group had crime rates “250 percent higher than their share of the population would have predicted.”