DRUG USE

Table 2. Trends in Selected Drug Use Indicators, 197920001 (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
adolescent
3
illicit drug
use2

Lifetime
adolescent
3
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 1217 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 (19791991), and Substance Abuse and Mental Health Services Administration (19922000), National Household Survey on Drug Abuse.




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