More school shootings with casualties occurred during the 2020-21 school year than in any other year since data collection began, according to a new federal report on school crime and safety.

The report, published Tuesday by the National Center for Education Statistics, a research arm of the Education Department, showed a total of 93 school shootings with casualties at public and private elementary and secondary schools during the last school year, increasing from 11 a decade ago. Forty-three of those shootings resulted in deaths.

“Although the rate of nonfatal violent victimization at school for 12- to 18-year-olds was lower in 2019 than in 2009, there were more school shootings with casualties in 2021 than in any other year since data collection began in the early 2000’s, increasing from 11 in 2009 to 93 in 2021,” NCES Commissioner Peggy Carr said in a statement about the report, which also analyzed data collected on criminal victimization experienced by students, discipline and security practices at K-12 schools, mental health services provided and campus safety and security at colleges and universities.

According to the report, school shootings are defined as “incidents in which a gun is brandished or fired on school property,” and during the coronavirus pandemic NCES determined that school shootings also included those that happened on school property during remote instruction.

Notably, the broad methodology resulted in significantly more incidents that were reported in early estimates from Education Week’s school shooting tracker, which shows that 27 school shootings occurred during the 2021-22 school year.

“While the lasting impact of these crime and safety issues cannot be measured in statistics alone,” Carr said, “these data are valuable to the efforts of our policymakers, school officials, and community members to identify and implement preventive and responsive measures.”

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The new data, which compares incidents of school crime and safety to data collected a decade ago, also shows that cyberbullying in public schools increased significantly, with the percentage of students saying they had experienced it jumping from 8% in the 2009-10 school year to 16% in the 2019-20 school year.

Some bright spots: The incidence of several discipline issues at public schools declined in the decade between the 2009-10 and 2019-20 school years, with lower prevalence of student bullying reports, at 15% of students compared to 23%; lower student sexual harassment of other students, at 2% compared to 3%; and lower student harassment of other students based on sexual orientation or gender identity, at 2% compared to 3%. And in the higher education setting, the rate of criminal incidents on campus also declined in that same time, from 23 per 10,000 full-time students to 18.7.

However, the rate of forcible sex offenses on college and university campuses increased significantly during that decade from 1.7 per 10,000 students during the 2009-10 to 8 per 10,000 students in 2019–20.