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DRUG USE
Table 2. Trends in Selected Drug Use Indicators, 1979�20001 (Estimated Number and Percent Prevalence)
|
Year
|
Current use of any
illicit drug2
|
Current
cocaine
use2
|
Occasional
(less than
monthly)
cocaine use
|
Current
marijuana
use2
|
Lifetime
heroin
use
|
Any
adolescent3
illicit drug
use2
|
Lifetime
adolescent3
inhalant
use4
|
|
Users (thousands)
|
|
1979
|
25,400
|
4,700
|
�
|
23,800
|
2,300
|
4,100
|
�
|
|
1982
|
�
|
4,500
|
�
|
21,500
|
1,800
|
2,800
|
�
|
|
1985
|
23,300
|
5,700
|
7,100
|
18,600
|
1,800
|
3,200
|
�
|
|
1988
|
15,000
|
3,100
|
5,100
|
12,400
|
1,700
|
1,900
|
�
|
|
1990
|
13,500
|
1,700
|
3,700
|
10,900
|
1,500
|
1,600
|
�
|
|
1991
|
13,400
|
2,000
|
3,800
|
10,400
|
2,400
|
1,400
|
�
|
|
1992
|
12,000
|
1,400
|
3,000
|
9,700
|
1,700
|
1,300
|
�
|
|
1993
|
12,300
|
1,400
|
2,700
|
9,600
|
2,100
|
1,400
|
�
|
|
1994
|
12,600
|
1,400
|
2,400
|
10,100
|
2,100
|
1,800
|
1,500
|
|
1995
|
12,800
|
1,500
|
2,500
|
9,800
|
2,500
|
2,400
|
1,600
|
|
1996
|
13,000
|
1,700
|
2,600
|
10,100
|
2,400
|
2,000
|
1,300
|
|
1997
|
13,900
|
1,500
|
2,600
|
11,100
|
2,000
|
2,600
|
1,600
|
|
1998
|
13,600
|
1,800
|
2,400
|
11,000
|
2,400
|
2,300
|
1,400
|
|
1999-CAI
|
13,829
|
1,552
|
1,926
|
10,458
|
3,054
|
2,265
|
2,118
|
|
2000-CAI
|
14,027
|
1,213
|
1,732
|
10,714
|
2,779
|
2,264
|
2,079
|
|
Rate of use (%)
|
|
1979
|
14.1
|
2.6
|
�
|
13.2
|
1.3
|
16.3
|
�
|
|
1982
|
�
|
2.4
|
�
|
11.5
|
1.0
|
�
|
�
|
|
1985
|
12.1
|
3.0
|
3.7
|
9.7
|
0.9
|
13.2
|
�
|
|
1988
|
7.7
|
1.6
|
2.6
|
6.2
|
0.9
|
8.1
|
�
|
|
1990
|
6.7
|
0.9
|
1.8
|
5.4
|
0.8
|
7.1
|
�
|
|
1991
|
6.6
|
1.0
|
1.9
|
5.1
|
1.2
|
5.8
|
�
|
|
1992
|
5.8
|
0.7
|
1.5
|
4.7
|
0.8
|
5.3
|
�
|
|
1993
|
5.9
|
0.7
|
1.3
|
4.6
|
1.0
|
5.7
|
�
|
|
1994
|
6.0
|
0.7
|
1.2
|
4.8
|
1.0
|
8.2
|
7.0
|
|
1995
|
6.1
|
0.7
|
1.2
|
4.7
|
1.2
|
10.9
|
7.4
|
|
1996
|
6.1
|
0.8
|
1.2
|
4.7
|
1.1
|
9.0
|
5.9
|
|
1997
|
6.4
|
0.7
|
1.2
|
5.1
|
0.9
|
11.4
|
7.2
|
|
1998
|
6.2
|
0.8
|
1.1
|
5.0
|
1.1
|
9.9
|
6.1
|
|
1999-PAPI
|
7.0
|
0.8
|
�
|
5.4
|
�
|
9.0
|
�
|
|
1999-CAI
|
6.3
|
0.7
|
0.9
|
4.7
|
1.4
|
9.8
|
9.1
|
|
2000-CAI
|
6.3
|
0.5
|
0.8
|
4.8
|
1.2
|
9.7
|
8.9
|
� Data not available.
1 In 1999, the survey methodology changed from
a paper-and-pencil interview (PAPI) to a computer-assisted interview
(CAI). A PAPI supplement conducted in 1999 provides estimates that are
comparable to previous years. Estimates based on the new CAI methodology
are not directly comparable to previous years.
2 Data for past-month (current) use.
3 Ages 12�17 years.
4 Prior to a 1994
questionnaire change; data did not allow separate reporting for this
age group.
Note: "Any illicit drug use" includes use of marijuana, cocaine, hallucinogens, inhalants (except in 1982), heroin, or nonmedical use of sedatives,
tranquilizers, stimulants, or analgesics. The exclusion of inhalants
in 1982 is believed to have resulted in underestimates of any illicit
use for that year, especially for adolescents.
Sources: National
Institute on Drug Abuse (1979�1991), and Substance Abuse and Mental
Health Services Administration (1992�2000), National Household
Survey on Drug Abuse.
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