"I see it is not a federal statistic:"
Does this have some bearing on the statistic?

Here are some Federal statistics:

"The US Justice Department issued a report on criminal aliens who are incarcerated in federal and state prisons and local jails.

The report contained information on the number of criminal aliens incarcerated, their country of citizenship or country of birth, and the cost to incarcerate them. Congress also requested that the Government Accounting Office provide information on the criminal history of aliens incarcerated in federal and state prisons or local jails who had entered the country illegally.

In the population study of a sample of 55,322 illegal aliens, researche...

"I see it is not a federal statistic:"
Does this have some bearing on the statistic?

Here are some Federal statistics:

"The US Justice Department issued a report on criminal aliens who are incarcerated in federal and state prisons and local jails.

The report contained information on the number of criminal aliens incarcerated, their country of citizenship or country of birth, and the cost to incarcerate them. Congress also requested that the Government Accounting Office provide information on the criminal history of aliens incarcerated in federal and state prisons or local jails who had entered the country illegally.

In the population study of a sample of 55,322 illegal aliens, researchers found that they were arrested at least a total of 459,614 times, averaging about 8 arrests per illegal alien. Nearly all had more than 1 arrest. Thirty-eight percent (about 21,000) had between 2 and 5 arrests, 32 percent (about 18,000) had between 6 and 10 arrests, and 26 percent (about 15,000) had 11 or more arrests. Most of the arrests occurred after 1990.

They were arrested for a total of about 700,000 criminal offenses, averaging about 13 offenses per illegal alien. One arrest incident may include multiple offenses, a fact that explains why there are nearly one and half times more offenses than arrests. Almost all of these illegal aliens were arrested for more than 1 offense. Slightly more than half of the 55,322 illegal aliens had between 2 and 10 offenses."

About 45 percent of all offenses were drug or immigration offenses. About 15 percent were property-related offenses such as burglary, larceny-theft, motor vehicle theft, and property damage. About 12 percent were for violent offenses such as murder, robbery, assault, and sex-related crimes."

"Sources: Government Accounting Office, US Department of Justice, National Security Institute"