| State | ||||||||||
| Adult Tertiary Drug of Abuse | ||||||||||
| Source: IDHW Client Information System | ||||||||||
| Common Compounds | 1999-2000 | 2000-2001 | 2001-2002 | 2002-2003 | 2003-2004 | 2004-2005 | 2005 | 2006 | 2007 | 2008 |
| Alcohol | 362 | 371 | 507 | 478 | 501 | 681 | 888 | 919 | ||
| Methamphetamines | 318 | 340 | 493 | 383 | 215 | 270 | 363 | 349 | ||
| Marijuana | 273 | 320 | 423 | 312 | 370 | 397 | 527 | 524 | ||
| Cocaine | 192 | 200 | 212 | 191 | 127 | 166 | 231 | 212 | ||
| Heroin | 30 | 47 | 43 | 32 | 25 | 30 | 40 | 58 | ||
| Other Compounds | 1999-2000 | 2000-2001 | 2001-2002 | 2002-2003 | 2003-2004 | 2004-2005 | 2005 | 2006 | 2007 | 2008 |
| Non-Rx Methadone | 1 | 3 | 2 | 3 | 4 | 5 | 8 | 8 | ||
| Other Opiates/Synth | 14 | 19 | 30 | 31 | 58 | 88 | 85 | 108 | ||
| PCP | 1 | 1 | 1 | 0 | 0 | 1 | 2 | 0 | ||
| Hallucinogens | 71 | 79 | 77 | 56 | 39 | 38 | 48 | 51 | ||
| Other Amphetamines | 14 | 8 | 3 | 2 | 6 | 7 | 21 | 21 | ||
| Other Inhalants | 2 | 3 | 7 | 5 | ||||||
| Benzodiazpine | 2 | 4 | 1 | 3 | 11 | 4 | 19 | 26 | ||
| Other Tranquilizers | 1 | 2 | 3 | 4 | 4 | 2 | 4 | 1 | ||
| Barbituates | 1 | 2 | 1 | 2 | 5 | 4 | 3 | 3 | ||
| Other Sedatives | 5 | 3 | 9 | 5 | 0 | 1 | 2 | 0 | ||
| Inhalants | 8 | 6 | 2 | 1 | 2 | 3 | 4 | 21 | ||
| Over-the-Counter | 3 | 3 | 4 | 2 | 3 | 5 | 6 | 7 | ||
| Other | 18 | 7 | 2 | 6 | 18 | 15 | 11 | 10 | ||
| None | 3131 | 3036 | 3101 | 2899 | 3648 | 5805 | 5747 | 3737 | ||