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National Drug Control Strategy
Update 2003

February 2003

Table 9. Trends in Harmfulness of Drugs as Perceived by 10th Graders, Monitoring the Future Study, 1991�2002

Drug Behavior
Percentage saying “great risk“1
1991
1992
1993
1994
1995
1996
1997
1998
1999
2000
2001
2002
2001-2002 Change
How much do you think people risk harming themselves (physically or in other ways), if they . . .
Try marijuana once or twice
40.4
39.1
36.2
31.6
28.9
27.9
25.3
28.1
28.0
29.0
27.7
28.2
+0.5
Smoke marijuana occasionally
57.9
56.3
53.8
48.6
45.9
44.3
43.1
45.0
45.7
47.4
46.3
46.0
-0.3
Smoke marijuana regularly
83.8
82.0
79.6
74.3
73.0
70.9
72.7
73.0
73.9
74.8
72.2
71.7
-0.5
Try crack once or twice2
62.8
61.2
57.2
54.4
50.8
51.0
49.9
49.3
48.7
48.5
48.6
47.4
-1.2
Take crack occasionally2
82.2
79.6
76.8
74.4
72.1
71.6
71.2
70.6
70.6
70.1
70.0
69.7
-0.2
Try cocaine powder once or twice2
55.5
54.1
50.7
48.4
44.9
45.2
45.0
44.0
43.3
43.3
43.9
43.2
-0.7
Take cocaine powder occasionally2
77.0
74.3
71.8
69.1
66.4
65.7
65.8
65.2
65.4
65.5
65.8
64.9
-0.9
Approximate N
17,437
18,662
18,366
17,394
17,501
17,926
18,765
18,100
16,700
17,300
16,200
15,100
 
Note: s=.05; any inconsistency between the 2000�2001 change estimate and the respective prevalence estimates is due to rounding.
1Answer alternatives were: (1) no risk, (2) slight risk, (3) moderate risk, (4) great risk, and (5) can't say, drug unfamiliar.
2Beginning in 1997, data based on two-thirds of N indicated due to changes in questionnaire forms.
Source: Institute for Social Research, University of Michigan, Monitoring the Future study (December 2002).

 


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Last Updated: May 7, 2003