Table 1.2. Admissions aged 12 and older, by alcohol/drug co-abuse: 2001-2011 Number and percent distribution
[Based on administrative data reported to TEDS by all reporting States and jurisdictions.]
Alcohol/drug co-abuse	2001	2002	2003	2004	2005	2006	2007	2008	2009	2010	2011
	Number
Total	1,768,827	1,887,912	1,865,149	1,808,035	1,896,023	1,914,338	1,918,943	2,016,672	2,000,684	1,871,981	1,844,719
Drug primary	939,605	1,018,610	1,038,356	1,028,741	1,106,125	1,111,582	1,094,862	1,145,958	1,138,159	1,087,903	1,099,317
Drug only	551,268	602,105	630,149	634,089	696,710	714,181	707,026	755,182	759,654	737,625	766,224
Drug w/secondary alcohol	388,337	416,505	408,207	394,652	409,415	397,401	387,836	390,776	378,505	350,278	333,093
Alcohol primary	784,504	811,846	776,314	729,146	745,915	763,525	784,949	835,771	831,721	758,034	724,382
Alcohol only	430,610	447,594	431,404	402,888	412,249	424,485	438,875	472,131	467,786	419,495	400,012
Alcohol w/secondary drug	353,894	364,252	344,910	326,258	333,666	339,040	346,074	363,640	363,935	338,539	324,370
No primary substance reported	44,718	57,456	50,479	50,148	43,983	39,231	39,132	34,943	30,804	26,044	21,020
	Percent distribution
Total	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Drug primary	53.1	54.0	55.7	56.9	58.3	58.1	57.1	56.8	56.9	58.1	59.6
Drug only	31.2	31.9	33.8	35.1	36.7	37.3	36.8	37.4	38.0	39.4	41.5
Drug w/secondary alcohol	22.0	22.1	21.9	21.8	21.6	20.8	20.2	19.4	18.9	18.7	18.1
Alcohol primary	44.4	43.0	41.6	40.3	39.3	39.9	40.9	41.4	41.6	40.5	39.3
Alcohol only	24.3	23.7	23.1	22.3	21.7	22.2	22.9	23.4	23.4	22.4	21.7
Alcohol w/secondary drug	20.0	19.3	18.5	18.0	17.6	17.7	18.0	18.0	18.2	18.1	17.6
No primary substance reported	2.5	3.0	2.7	2.8	2.3	2.0	2.0	1.7	1.5	1.4	1.1
SOURCE: Center for Behavioral Health Statistics and Quality, Substance Abuse and Mental Health Services Administration, Treatment Episode Data Set (TEDS). Data received through 10.15.12.