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Table 232.60. Percentage of public school students in grades 9-12 who reported using marijuana at least one time during the previous 30 days, by location and state: Selected years, 2003 through 2011
[Standard errors appear in parentheses]
State Anywhere (including on school property)1 On school property2
2003 2005 2007 2009 2011 2003 2005 2007 2009 2011
1 2 3 4 5 6 7 8 9 10 11
United States3  22.4 (1.09) 20.2 (0.84) 19.7 (0.97) 20.8 (0.70) 23.1 (0.80) 5.8   (0.68) 4.5 (0.32) 4.5   (0.46) 4.6 (0.35) 5.9 (0.39)
                                             
Alabama 17.7 (1.38) 18.5 (1.49) (†) 16.2 (1.28) 20.8 (1.62) 2.6   (0.54) 3.5 (0.80)   (†) 4.6 (0.81) 4.0 (0.68)
Alaska 23.9 (1.29) (†) 20.5 (1.47) 22.7 (1.65) 21.2 (1.68) 6.5   (0.80) (†) 5.9   (0.70) 5.9 (0.69) 4.3 (0.59)
Arizona 25.6 (1.08) 20.0 (1.08) 22.0 (1.38) 23.7 (1.90) 22.9 (1.59) 6.5   (0.52) 5.1 (0.63) 6.1   (0.68) 6.4 (0.74) 5.6 (0.75)
Arkansas (†) 18.9 (1.70) 16.4 (1.08) 17.8 (1.24) 16.8 (1.72)   (†) 4.1 (0.61) 2.8   (0.50) 4.5 (1.02) 3.9 (0.78)
California (†) (†) (†) (†) (†)   (†) (†)   (†) (†) (†)
                                             
Colorado (†) 22.7 (2.99) (†) 24.8 (2.22) 22.0 (1.16)   (†) 6.0 (0.88)   (†) 6.1 (0.89) 6.0 (0.77)
Connecticut (†) 23.1 (1.37) 23.2 (1.35) 21.8 (1.52) 24.2 (1.44)   (†) 5.1 (0.49) 5.9   (0.77) 6.2 (0.76) 5.2 (0.68)
Delaware 27.3 (1.13) 22.8 (1.12) 25.1 (1.03) 25.8 (1.30) 27.6 (1.37) 6.0   (0.54) 5.6 (0.57) 5.4   (0.53) 5.6 (0.71) 6.1 (0.65)
District of Columbia 23.5 (1.23) 14.5 (1.08) 20.8 (1.33) (†) 26.1 (1.29) 7.5   (0.88) 4.8 (0.62) 5.8   (0.66) (†) 7.9 (0.91)
Florida 21.4 (0.89) 16.8 (0.86) 18.9 (0.88) 21.4 (0.72) 22.5 (0.86) 4.9   (0.41) 4.0 (0.31) 4.7   (0.40) 5.2 (0.39) 6.3 (0.39)
                                             
Georgia 19.5 (0.94) 18.9 (1.59) 19.6 (0.96) 18.3 (1.02) 21.2 (1.23) 3.2   (0.45) 3.3 (0.58) 3.6   (0.58) 3.4 (0.62) 5.6 (0.70)
Hawaii (†) 17.2 (1.73) 15.7 (1.78) 22.1 (2.03) 22.0 (1.32)   (†) 7.2 (1.14) 5.7   (0.85) 8.3 (1.86) 7.6 (0.67)
Idaho 14.7 (1.56) 17.1 (1.32) 17.9 (1.73) 13.7 (1.07) 18.8 (1.76) 2.7   (0.55) 3.9 (0.61) 4.7   (0.80) 3.0 (0.44) 4.9 (0.73)
Illinois (†) (†) 20.3 (1.38) 21.0 (1.53) 23.1 (1.59)   (†) (†) 4.2   (0.76) 5.0 (0.77) 4.7 (0.50)
Indiana 22.1 (1.19) 18.9 (1.38) 18.9 (1.19) 20.9 (1.83) 20.0 (1.13) 3.8   (0.67) 3.4 (0.57) 4.1   (0.45) 4.4 (0.62) 3.3 (0.66)
                                             
Iowa (†) 15.6 (1.74) 11.5 (1.53) (†) 14.6 (1.99)   (†) 2.7 (0.64) 2.5   (0.66) (†) 3.4 (0.88)
Kansas (†) 15.6 (1.46) 15.3 (0.93) 14.7 (1.19) 16.8 (0.87)   (†) 3.2 (0.51) 3.8   (0.53) 2.7 (0.35) 2.9 (0.53)
Kentucky 21.1 (1.09) 15.8 (1.19) 16.4 (1.07) 16.1 (1.15) 19.2 (1.47) 4.3   (0.55) 3.2 (0.45) 3.9   (0.44) 3.1 (0.54) 4.2 (0.65)
Louisiana (†) (†) (†) 16.3 (1.29) 16.8 (1.02)   (†) (†)   (†) 3.6 (0.89) 4.1 (0.59)
Maine 26.4 (1.69) 22.2 (2.13) 22.0 (1.55) 20.5 (0.57) 21.2 (0.72) 6.3   (0.76) 4.6 (0.72) 5.2   (0.65) (†) (†)
                                             
Maryland (†) 18.5 (2.25) 19.4 (1.91) 21.9 (1.57) 23.2 (1.51)   (†) 3.7 (0.82) 4.7   (1.13) 5.0 (0.65) 5.7 (0.70)
Massachusetts 27.7 (1.39) 26.2 (1.22) 24.6 (1.43) 27.1 (1.24) 27.9 (1.31) 6.3   (0.44) 5.3 (0.54) 4.8   (0.44) 5.9 (0.79) 6.3 (0.51)
Michigan 24.0 (1.96) 18.8 (1.29) 18.0 (1.10) 20.7 (0.91) 18.6 (1.15) 7.0   (1.20) 3.7 (0.50) 4.0   (0.57) 4.8 (0.59) 3.3 (0.44)
Minnesota (†) (†) (†) (†) (†)   (†) (†)   (†) (†) (†)
Mississippi 20.6 (1.57) (†) 16.7 (1.02) 17.7 (1.21) 17.5 (1.18) 4.4   (0.90) (†) 2.7   (0.35) 2.5 (0.46) 3.2 (0.58)
                                             
Missouri 21.8 (1.37) 18.1 (2.23) 19.0 (1.23) 20.6 (2.02) (†) 3.0   (0.58) 4.0 (0.82) 3.6   (0.63) 3.4 (0.48) (†)
Montana 23.1 (1.45) 22.3 (1.43) 21.0 (1.44) 23.1 (1.58) 21.2 (1.50) 6.4   (0.70) 6.1 (0.70) 5.0   (0.49) 5.8 (0.67) 5.5 (0.59)
Nebraska 18.3 (1.23) 17.5 (1.05) (†) (†) 12.7 (1.06) 3.9   (0.51) 3.1 (0.41)   (†) (†) 2.7 (0.43)
Nevada 22.3 (1.31) 17.3 (1.34) 15.5 (1.07) 20.0 (1.36) —  (†) 5.3   (0.69) 5.7 (0.81) 3.6   (0.55) 4.9 (0.53) (†)
New Hampshire 30.6 (2.51) 25.9 (1.69) 22.9 (1.39) 25.6 (1.86) 28.4 (1.82) 6.6   (0.86) (†) 4.7   (0.64) 6.8 (0.78) 7.3 (0.87)
                                             
New Jersey (†) 19.9 (2.18) (†) 20.3 (1.53) 21.1 (1.33)   (†) 3.4 (0.67)   (†) (†) (†)
New Mexico (†) 26.2 (2.00) 25.0 (2.07) 28.0 (1.52) 27.6 (1.58)   (†) 8.4 (0.98) 7.9   (0.86) 9.7 (1.06) 9.7 (0.84)
New York 20.7 (1.05) 18.3 (1.13) 18.6 (0.78) 20.9 (1.32) 20.6 (1.07) 4.5   (0.41) 3.6 (0.41) 4.1   (0.44) (†) —  (†)
North Carolina 24.3 (1.99) 21.4 (1.61) 19.1 (1.27) 19.8 (1.67) 24.2 (1.25) 3.5   (0.71) 4.1 (0.65) 4.3   (0.54) 4.0 (0.63) 5.2 (0.91)
North Dakota 20.6 (1.58) 15.5 (1.62) 14.8 (1.18) 16.9 (1.55) 15.3 (1.52) 6.3   (0.98) 4.0 (0.71) 2.7   (0.43) 3.8 (0.59) 3.4 (0.45)
                                             
Ohio3 21.4 (2.33) 20.9 (1.79) 17.7 (1.50) (†) 23.6 (1.95) 4.2   (0.96) 4.3 (0.62) 3.7   (0.67) (†) (†)
Oklahoma 22.0 (2.20) 18.7 (1.12) 15.9 (1.37) 17.2 (2.04) 19.1 (1.90) 4.3   (0.70) 3.0 (0.38) 2.6   (0.40) 2.9 (0.70) 2.4 (0.58)
Oregon (†) (†) (†) (†) (†)   (†) (†)   (†) (†) (†)
Pennsylvania (†) (†) (†) 19.3 (1.43) (†)   (†) (†)   (†) 3.5 (0.58) (†)
Rhode Island 27.6 (1.11) 25.0 (1.16) 23.2 (1.85) 26.3 (1.33) 26.3 (1.35) 7.4   (0.70) 7.2 (0.65) 6.5   (0.93) 5.1 (0.60) (†)
                                             
South Carolina (†) 19.0 (1.24) 18.6 (1.44) 20.4 (1.56) 24.1 (1.99)   (†) 4.6 (0.64) 3.3   (0.52) 3.7 (0.63) 5.2 (0.75)
South Dakota3 21.5 (3.35) 16.8 (1.87) 17.7 (3.72) 15.2 (1.36) 17.8 (3.57) 4.5 ! (1.50) 2.9 (0.73) 5.0 ! (2.41) 2.9 (0.49) (†)
Tennessee 23.6 (2.10) 19.5 (1.38) 19.4 (1.29) 20.1 (1.31) 20.6 (0.96) 4.1   (0.86) 3.5 (0.67) 4.1   (0.60) 3.8 (0.65) 3.6 (0.40)
Texas (†) 21.7 (0.99) 19.3 (1.01) 19.5 (0.71) 20.8 (1.30)   (†) 3.8 (0.52) 3.6   (0.30) 4.6 (0.51) 4.8 (0.47)
Utah 11.4 (1.28) 7.6 (1.18) 8.7 (2.00) 10.0 (1.53) 9.6 (1.26) 3.7   (0.59) 1.7 (0.42) 3.8 ! (1.24) 2.5 (0.48) 4.0 (0.72)
                                             
Vermont 28.2 (1.58) 25.3 (1.59) 24.1 (0.88) 24.6 (1.14) 24.4 (1.43) 8.0   (0.44) 7.0 (0.80) 6.3   (0.63) 6.3 (0.57) 6.0 (0.84)
Virginia (†) (†) (†) (†) 18.0 (1.79)   (†) (†)   (†) (†) 3.5 (0.70)
Washington (†) (†) (†) (†) (†)   (†) (†)   (†) (†) (†)
West Virginia 23.1 (2.13) 19.6 (1.70) 23.5 (1.05) 20.3 (1.73) 19.7 (1.61) 4.5   (0.72) 4.9 (0.85) 5.8   (0.97) 3.9 (0.37) 3.0 (0.45)
Wisconsin 21.8 (1.18) 15.9 (1.07) 20.3 (1.30) 18.9 (1.64) 21.6 (1.78)   (†) (†)   (†) (†) (†)
Wyoming 20.4 (1.56) 17.8 (1.05) 14.4 (0.79) 16.9 (0.91) 18.5 (1.23) 5.1   (0.66) 4.0 (0.43) 4.7   (0.52) 5.3 (0.45) 4.7 (0.44)
—Not available.
†Not applicable.
!Interpret data with caution. The coefficient of variation (CV) for this estimate is between 30 and 50 percent.
1 The term "anywhere" is not used in the Youth Risk Behavior Survey (YRBS) questionnaire; students were simply asked how many times during the previous 30 days they had used marijuana.
2 In the question about using marijuana at school, "on school property" was not defined for survey respondents.
3 Data include both public and private schools.
NOTE: State-level data include public schools only, with the exception of data for Ohio and South Dakota. Data for the United States total, Ohio, and South Dakota include both public and private schools.
SOURCE: Centers for Disease Control and Prevention, Division of Adolescent and School Health, Youth Risk Behavior Surveillance System (YRBSS), 2003 through 2011. (This table was prepared September 2013.)
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