|
1990 |
1991 |
1992 |
1993 |
1994 |
1996 |
1998 |
2000 |
2002 |
2004 |
2006 |
2008 |
2010 |
2012 |
Drug (N=) |
3,124 |
2,732 |
2,632 |
2,868 |
2,779 |
1,898 |
1,934 |
2,012 |
2,406 |
2,295 |
2890 |
2859 |
3,049 |
3,014 |
Marijuana |
2.2 |
2.3 |
3.1 |
4.1 |
6.5 |
6.9 |
6.8 |
6.6 |
8.8 |
5.9 |
4.8 |
4.7 |
6.3 |
6.9 |
Crack |
0.1 |
0.1 |
<0.1 |
0.7 |
1.1 |
0.2 |
0.1 |
0.3 |
0.2 |
0.2 |
0.3 |
0.4 |
0.3 |
0.2 |
Cocaine HCL |
0.1 |
<0.1 |
<0.1 |
0.8 |
1.2 |
0.5 |
0.2 |
0.3 |
<0.1 |
0.3 |
0.3 |
0.3 |
0.2 |
0.2 |
Inhalants |
0.2 |
0.3 |
0.1 |
0.8 |
1.3 |
0.3 |
0.2 |
0.1 |
0.1 |
<0.1 |
<0.1 |
<0.1 |
0.1 |
0.3 |
Steroids |
<0.1 |
0.0 |
0.1 |
0.6 |
1.1 |
0.0 |
0.2 |
0.2 |
0.1 |
<0.1 |
0.2 |
1.0 |
0.1 |
0.2 |
Nitrites |
<0.1 |
<0.1 |
<0.1 |
0.8 |
1.2 |
0.1 |
0.2 |
- |
- |
- |
- |
- |
- |
- |
Nitrous Oxide |
- |
- |
- |
- |
- |
- |
- |
0.3 |
0.1 |
<0.1 |
0.1 |
<0.1 |
0.1 |
0.2 |
Hallucinogens |
0.1 |
0.1 |
<0.1 |
0.7 |
1.2 |
0.2 |
0.1 |
0.4 |
0.2 |
<0.1 |
0.2 |
0.4 |
0.3 |
0.1 |
Opiates |
<0.1 |
<0.1 |
<0.1 |
0.6 |
1.3 |
0.1 |
0.2 |
0.4 |
0.4 |
0.3 |
0.5 |
0.5 |
0.5 |
0.3 |
Heroin |
- |
- |
- |
- |
- |
- |
- |
0.5 |
0.2 |
0.2 |
0.1 |
0.6 |
0.3 |
0.3 |
Tranquilizers |
0.2 |
0.1 |
<0.1 |
0.6 |
1.1 |
0.0 |
0.1 |
0.2 |
0.7 |
0.6 |
0.5 |
0.6 |
0.4 |
0.4 |
Stimulants |
0.3 |
0.1 |
0.1 |
1.0 |
1.3 |
0.6 |
0.5 |
0.3 |
0.4 |
<0.1 |
0.2 |
0.3 |
0.3 |
0.4 |
Methamphetamines |
- |
- |
- |
- |
- |
- |
- |
0.3 |
0.6 |
<0.1 |
0.1 |
0.5 |
0.4 |
0.2 |
No Rx Diet/SA Pills |
- |
- |
- |
- |
- |
- |
- |
1.9 |
2.1 |
1.6 |
1.4 |
1.0 |
0.5 |
0.8 |
PCP |
<0.1 |
0.0 |
0.0 |
0.7 |
1.0 |
0.2 |
0.2 |
- |
- |
- |
- |
- |
- |
- |
Alcohol |
5+ Daily |
5+ Daily |
5+ Daily |
5+ Daily |
5+ Daily |
5+ Daily |
5+ Daily |
5+ Daily |
5+ Daily |
5+ Daily |
5+ Daily |
5+ Daily |
5+ Daily |
5+ Daily |
|
25.2 / 3.4 |
28.8 / 4.2 |
29.1 / 3.8 |
30.2 / 4.3 |
26.4 / 4.5 |
32.9 / 4.3 |
28.7 / 4.3 |
34.1 / 3.7 |
32.6 / 4.0 |
31.9 / 4.1 |
30.1 / 3.7 |
27.2 / 2.7 |
26.7 / 2.7 |
23.6 / 1.4 |
Cigarettes |
HP+/Daily |
HP+/Daily |
HP+/Daily |
HP+/Daily |
HP+/Daily |
HP+/Daily |
HP+/Daily |
HP+/Daily |
HP+/Daily |
HP+/Daily |
HP+/Daily |
HP+/Daily |
HP+/Daily |
HP+/Daily |
|
8.5 / 15.6 |
10.5 / 17.5 |
11.1 / 21.3 |
10.8 / 18.8 |
12.9 / 20.6 |
16.6 / 23.2 |
14.7 / 23.3 |
13.5 / 24.5 |
10.9 / 18.9 |
8.0 / 14.1 |
5.4 / 10.9 |
5.2 / 10.4 |
5.2 / 11.3 |
3.4 / 8.3 |
Smokeless Tobacco |
N/A |
5.6 |
4.5 |
4.1 |
3.2 |
3.3 |
2.7 |
2.9 |
1.9 |
2.5 |
2.7 |
3.4 |
2.7 |
2.7 |
Ritalin |
- |
- |
- |
- |
- |
- |
- |
- |
0.3 |
<0.1 |
0.2 |
0.4 |
0.2 |
0.2 |
Ecstasy |
- |
- |
- |
- |
- |
- |
- |
- |
<0.1 |
<0.1 |
0.2 |
0.3 |
0.3 |
0.1 |
5+ = Five or more
drinks in a row on at least one occasion *Daily use — Having used the drug in question twenty or more times in the 30 days prior to the study |
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