| Region 2 | |||||||||
| Adult Secondary Drug of Abuse | |||||||||
| Source: IDHW Client Information System | |||||||||
| 1999-2000 | 2000-2001 | 2001-2002 | 2002-2003 | 2004-2005 | 2005-2006 | 2006-2007 | 2007-2008 | ||
| Alcohol | 50 | 52 | 51 | 63 | 93 | 83 | 108 | 69 | |
| Methamphetamines | 40 | 48 | 51 | 45 | 70 | 52 | 51 | 47 | |
| Marijuana | 116 | 114 | 97 | 132 | 146 | 117 | 108 | 100 | |
| Cocaine | 24 | 21 | 5 | 6 | 15 | 14 | 15 | 14 | |
| Heroin | 4 | 7 | 6 | 6 | 6 | 7 | 6 | 13 | |
| Other Compounds | 1999-2000 | 2000-2001 | 2001-2002 | 2002-2003 | 2004-2005 | 2005-2006 | 2006-2007 | 2007-2008 | |
| Non-Rx Methadone | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 4 | |
| Other Opiates/Synth | 3 | 1 | 4 | 5 | 9 | 16 | 13 | 21 | |
| PCP | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | |
| Hallucinogens | 3 | 1 | 2 | 3 | 4 | 4 | 0 | 0 | |
| Other Amphetamines | 1 | 0 | 0 | 2 | 1 | 4 | 0 | 1 | |
| Other Inhalants | 1 | 1 | 0 | 0 | |||||
| Benzodiazpine | 0 | 0 | 0 | 1 | 1 | 1 | 2 | 1 | |
| Other Tranquilizers | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | |
| Barbituates | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | |
| Other Sedatives | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | |
| Inhalants | 0 | 0 | 0 | 0 | 0 | 0 | 5 | 5 | |
| Over-the-Counter | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | |
| Other | 1 | 0 | 0 | 0 | 1 | 3 | 0 | 0 | |
| None | 148 | 157 | 170 | 182 | 287 | 341 | 270 | 149 | |