|Percent of schools|| Number of serious|
|Type of offense||1999–2000||2003–04||2005–06||1999–2000||2003–04||2005–06|
|Physical attacks or fights||35.4||32.0||31.5||332,500||273,500||323,900|
|Distribution, possession, or use of alcohol||—||9.2||10.2||—||25,500||30,100|
|Distribution, possession, or use of illegal drugs||—||21.2||20.8||—||91,100||106,800|
|Use or possession of a weapon other than a firearm1||—||16.8||19.3||—||35,400||46,600|
|Use or possession of a firearm or explosive device||—||3.9||4.5||—||9,900!||14,300|
! Interpret data with caution.
1 The questionnaire wording changed to "use or possession of a weapon other than a firearm/explosive device" in 2006.
NOTE: Responses were provided by the principal or the person most knowledgeable about crime and safety issues at the school. Serious disciplinary actions include removals with no continuing services for at least the remainder of the school year, transfers to specialized schools for disciplinary reasons, and out-of-school suspensions lasting 5 or more days, but less than the remainder of the school year. Respondents were instructed to respond only for those times that were during normal school hours or when school activities or events were in session, unless the survey specified otherwise. Population sizes of public schools are 82,000 in 1999–2000, 80,500 in 2003–04, and 83,200 in 2005–06. Detail may not sum to totals because of rounding. Estimates of number of actions are rounded to the nearest 100.
SOURCE: U.S. Department of Education, National Center for Education Statistics, 1999–2000, 2003–04, and 2005–06 School Survey on Crime and Safety (SSOCS), 2000, 2004, and 2006.