| Year | Total | Total w/Source | Individual | Alcohol/Drug Abuse Care Provider | Other Health Care Provider | School | Employer | Other Community Referral | Criminal Justice System |
| 2007 | 1,618 | 1,617 | 12.6% | 0.3% | 18.2% | 1.1% | 0.9% | 1.8% | 65.0% |
| 2006 | 1,450 | 1,449 | 12.6% | 17.6% | 1.6% | 1.0% | 2.5% | 64.7% | |
| 2005 | 1,546 | 1,542 | 14.0% | 0.1% | 18.1% | 1.3% | 0.8% | 2.1% | 63.7% |
| 2004 | 1,480 | 1,479 | 14.7% | 0.1% | 20.4% | 0.5% | 1.2% | 3.5% | 59.8% |
| 2003 | 1,476 | 1,473 | 15.3% | 0.1% | 21.1% | 0.3% | 1.3% | 2.0% | 60.0% |
| 2002 | 1,356 | 1,354 | 14.0% | 20.4% | 0.5% | 0.9% | 2.7% | 61.5% | |
| 2001 | 1,294 | 1,288 | 15.3% | 0.1% | 22.9% | 1.0% | 1.1% | 2.6% | 57.0% |
| 2000 | 1,384 | 1,379 | 15.2% | 20.7% | 0.6% | 0.9% | 3.0% | 59.5% | |
| 1999 | 1,214 | 1,209 | 17.5% | 0.1% | 21.8% | 0.7% | 0.7% | 2.6% | 56.6% |
| 1998 | 1,205 | 1,201 | 16.5% | 0.2% | 25.7% | 0.6% | 0.5% | 1.8% | 54.7% |
| 1997 | 1,187 | 1,182 | 15.8% | 0.3% | 25.6% | 0.7% | 1.5% | 2.2% | 53.9% |
| 1996 | 1,275 | 1,272 | 14.2% | 21.4% | 0.7% | 1.4% | 2.6% | 59.7% | |
| 1995 | 1,166 | 1,166 | 16.2% | 9.4% | 14.5% | 0.9% | 0.6% | 2.1% | 56.3% |
| 1994 | 993 | 992 | 18.6% | 14.7% | 8.3% | 1.1% | 1.5% | 2.3% | 53.5% |
| 1993 | 904 | 904 | 17.3% | 12.1% | 8.1% | 2.0% | 1.0% | 3.5% | 56.1% |
| 1992 | 870 | 869 | 17.3% | 12.4% | 7.1% | 6.3% | 2.2% | 5.4% | 49.3% |
Source: Treatment Episodes Data Set