There were 8000 hate crimes reported to the FBI in 2017 by agencies using UCR or NIBRS. The data comes from the initial incident report from the agency. It does not reflect hoax reports, cases that are dropped for various reasons, or cases that go to trial and the suspect is found not guilty or acquitted. The agencies do not send follow up reports to the FBI regarding these cases.
And I know this because I ran the UCR unit of a large Florida Sheriff’s Office for 3 years.