Table 1.2. Admissions aged 12 and older, by alcohol/drug co-abuse: 1999-2009 Number and percent distribution
[Based on administrative data reported to TEDS by all reporting States and jurisdictions.]
Alcohol/drug co-abuse	1999	2000	2001	2002	2003	2004	2005	2006	2007	2008	2009
	Number
Total	1,715,336	1,749,709	1,767,424	1,885,446	1,861,654	1,807,101	1,891,276	1,905,507	1,906,412	1,996,591	1,963,089
Drug primary	852,176	897,431	938,747	1,017,060	1,036,354	1,028,123	1,103,109	1,107,363	1,089,332	1,131,661	1,115,516
Drug only	471,622	517,798	550,652	601,017	628,704	633,579	693,598	709,326	701,037	743,123	743,628
Drug w/secondary alcohol	380,554	379,633	388,095	416,043	407,650	394,544	409,511	398,037	388,295	388,538	371,888
Alcohol primary	823,059	810,927	783,988	810,971	774,852	728,854	744,191	759,168	778,421	828,142	819,112
Alcohol only	460,560	453,229	430,294	447,128	430,676	402,701	410,474	420,561	433,451	466,362	460,772
Alcohol w/secondary drug	362,499	357,698	353,694	363,843	344,176	326,153	333,717	338,607	344,970	361,780	358,340
No primary substance reported	40,101	41,351	44,689	57,415	50,448	50,124	43,976	38,976	38,659	36,788	28,461
	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	49.7	51.3	53.1	53.9	55.7	56.9	58.3	58.1	57.1	56.7	56.8
Drug only	27.5	29.6	31.2	31.9	33.8	35.1	36.7	37.2	36.8	37.2	37.9
Drug w/secondary alcohol	22.2	21.7	22.0	22.1	21.9	21.8	21.7	20.9	20.4	19.5	18.9
Alcohol primary	48.0	46.3	44.4	43.0	41.6	40.3	39.3	39.8	40.8	41.5	41.7
Alcohol only	26.8	25.9	24.3	23.7	23.1	22.3	21.7	22.1	22.7	23.4	23.5
Alcohol w/secondary drug	21.1	20.4	20.0	19.3	18.5	18.0	17.6	17.8	18.1	18.1	18.3
No primary substance reported	2.3	2.4	2.5	3.0	2.7	2.8	2.3	2.0	2.0	1.8	1.4
SOURCE: Center for Behavioral Health Statistics and Quality, Substance Abuse and Mental Health Services Administration, Treatment Episode Data Set (TEDS). Data received through 11.03.10.