# of joints |
consumption days per year |
|||
per consumption day |
12 to 30 |
31 to 54 |
55 to 234 |
235 to 365 |
|
1
|
79.15%
|
53.80%
|
42.39%
|
35.50%
|
|
2
|
10.84%
|
22.28%
|
22.87%
|
26.86%
|
|
3
|
5.87%
|
17.12%
|
11.09%
|
14.43%
|
|
4
|
1.57%
|
2.22%
|
2.66%
|
8.38%
|
|
5
|
1.25%
|
1.89%
|
5.83%
|
2.66%
|
|
6 or more
|
1.32%
|
2.69%
|
15.17%
|
12.17%
|
Source: National Household Survey on Drug Abuse, 1991 – 1993. Substance Abuse and Mental Health Services Administration (SAMSHA).