Table 2.2b Admissions by alcohol/drug co-abuse: TEDS 1992-2000 Percent distribution
[Based on administrative data reported to TEDS by all reporting States and jurisdictions. See Table 4.2.]
Alcohol/drug co-abuse	1992	1993	1994	1995	1996	1997	1998	1999	2000
Total	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Alcohol primary	58.8	56.5	52.5	50.5	50.2	48.4	47.2	46.7	45.3
Alcohol only	36.8	34.3	30.8	29.2	28.8	27.3	26.7	26.6	25.9
Alcohol w/secondary drug	21.9	22.2	21.6	21.3	21.5	21.0	20.5	20.1	19.4
Drug primary	38.3	40.7	44.6	46.8	47.2	49.1	49.7	50.5	52.2
Drug only	20.0	21.0	23.5	24.8	24.9	26.4	27.1	28.1	30.2
Drug w/secondary alcohol	18.3	19.7	21.1	21.9	22.4	22.7	22.6	22.4	22.1
No primary substance reported	3.0	2.8	2.9	2.7	2.5	2.5	3.0	2.7	2.5
SOURCE: Office of Applied Studies, Substance Abuse and Mental Health Services Administration, Treatment Episode Data Set (TEDS) - 4.1.02.