Muslims in America appear to have a bull's-eye on their backs.

Hate crimes targeting Muslims, their mosques and businesses, have tripled this year and the bulk of the attacks have occurred in recent weeks, according to a tally by California State University San Bernardino college professor Brian Levin.

There have been 38 anti-Muslim attacks in the U.S. since the deadly Nov. 13 terrorist attacks in Paris, Levin found, NBC News reported.

And 18 of those happened in the wake of the Dec. 2 slaughter in San Bernardino, according to Levin, whose office is just nine miles from the government building where a radicalized Muslim couple murdered 14 people and wounded 22 more before they were killed by law enforcement.

There were 481 anti-Islam hate crimes reported in 2001, most of them after the Sept. 11 attacks, for an average monthly rate of 40.1, according to FBI statistics crunched by Levin.

Over the last five years, Levin found that there were 150.8 anti-Islamic hate crimes per year for a monthly average of 12.6.

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