WASHINGTON — The latest government snapshot of school crime paints a picture of safer schools with declines in violent crime, bullying and harassment because of sexual orientation.

Still, about 3 percent of students ages 12 to 18 said they were victims of crimes at school in 2014. About 1.3 million students were suspended for at least one full school day for alcohol violations, violence or weapons possession.

Middle school students were more likely to be bullied than high school or elementary school students, said the report, released Wednesday by the National Center for Education Statistics and the Justice Department.

On college campuses, the number of sexual attacks more than doubled from 2001 to 2013. “There’s really no way to say whether those increases reflect an increase in actual forcible sex crimes or just that more people are coming forward and reporting them,” said Lauren Musu-Gillette, an author of the report.

Overall, the report showed progress, said Peggy Carr, acting NCES commissioner.