Table 1
Weapons: Percentage of High School Students Who Carry Weapons,1 Selected Years, 1991-2007
  1991 1993 1995 1997 1999 2001 2003 2005 2007
All Students 26.1 22.1 20.0 18.3 17.3 17.4 17.1 18.5 18.0
   
Race/Ethnicity2  
White, non-Hispanic 25.1 20.6 18.9 17.0 16.4 17.9 16.7 18.7 18.2
Black, non-Hispanic 32.7 28.5 21.8 21.7 17.2 15.2 17.3 16.4 17.2
Hispanic 25.8 24.4 24.7 23.3 18.7 16.5 16.5 19.0 18.5
   
Grade  
9 27.5 25.5 22.6 22.6 17.6 19.8 18.0 19.9 20.1
    10 26.8 21.4 21.1 17.4 18.7 16.7 15.9 19.4 18.8
    11 29.0 21.5 20.3 18.2 16.1 16.8 18.2 17.1 16.7
    12 21.3 19.9 16.1 15.4 15.9 15.1 15.5 16.9 15.5
Male 40.6 34.3 31.1 27.7 28.6 29.3 26.9 29.8 28.5
   
Race/Ethnicity2  
White, non-Hispanic 41.2 33.4 30.6 27.0 28.6 31.3 27.1 31.4 30.3
Black, non-Hispanic 43.4 38.2 29.6 29.1 23.1 22.4 24.9 23.7 24.6
Hispanic 40.0 37.3 36.6 35.0 29.5 26.0 24.3 29.8 28.2
   
Grade  
9 44.4 39.0 33.8 33.2 28.7 33.7 26.6 31.6 31.0
    10 41.5 32.5 32.4 26.6 30.7 28.4 26.5 30.6 29.3
    11 44.0 33.0 32.1 28.8 26.9 28.1 29.2 28.6 27.7
    12 33.1 32.6 26.0 23.3 27.3 25.6 25.2 27.6 25.0
Female 10.9 9.2 8.3 7.0 6.0 6.2 6.7 7.1 7.5
   
Race/Ethnicity2  
White, non-Hispanic 7.5 6.9 5.5 4.4 3.6 5.1 5.5 6.0 6.1
Black, non-Hispanic 23.6 18.9 15.7 14.7 11.7 8.6 9.8 9.4 10.0
Hispanic 12.9 11.5 13.2 9.6 8.4 7.4 8.5 7.8 9.0
   
Grade  
9 10.4 11.1 9.3 10.9 6.5 7.4 8.8 8.1 8.9
    10 11.1 9.8 9.3 6.3 7.1 5.4 5.2 7.8 8.1
    11 12.9 9.1 7.7 5.7 5.2 5.9 6.8 6.1 6.0
    12 9.5 6.9 6.3 5.3 4.8 5.3 5.2 6.2 6.2
   
Note: Estimates do not include youth who dropped out of school and therefore may not reflect total national values 
"-" Indicates data not available.  
1Such as a gun, knife, or club on one or more occasion in the 30 days preceding the survey.   
2Race/ethnicity estimates from 1999 and later are not directly comparable to earlier years due to federal changes in race definitions. In surveys conducted in 1999 and later, respondents were allowed to select more than one race when selecting their racial category. Estimates presented only include respondents who selected one category when choosing their race. 
Source:  Centers for Disease Control and Prevention. Surveillance Summaries, Data for 1991: YRBSS: Youth Online, Comprehensive Results. Retrieved May 24, 2004 from URL: http://apps.nccd.cdc.gov/yrbss/.; Data for 1993: March 24 1995. MMWR 1995; 44(No. SS-1): Table 4; Data for 1995: September 27, 1996. MMWR 1996; 45 (No. SS-4): Table 4. Data for 1997: August 14, 1998. MMWR; 47(No. SS-3): Table 4; Data for 1999: June 9, 2000. MMWR 2000; 49(No. SS-5): Table 6;  Data for 2001: June 28, 2002. MMWR 2002; 51 (No. SS-4): Table 6. Data for 2003: May 21, 2004. MMWR 2004:53(No. SS-2): Table 6.  Data for 2005: June 9, 2006.  MMWR 2006; 55 (No.SS-5): Table 6.  Data for 2007:  June 6, 2008.  MMWR 2007:57 (No. SS-4).  Table 7