| Year | Total | Total w/Source | Individual | Alcohol/Drug Abuse Care Provider | Other Health Care Provider | School | Employer | Other Community Referral | Criminal Justice System |
| 2007 | 1,507 | 1,507 | 11.1% | 0.6% | 1.3% | 0.3% | 1.9% | 9.0% | 75.9% |
| 2006 | 1,409 | 1,409 | 11.4% | 1.1% | 3.1% | 0.4% | 1.4% | 7.9% | 74.7% |
| 2005 | 1,638 | 1,628 | 12.4% | 1.2% | 6.8% | 0.7% | 1.8% | 8.7% | 68.3% |
| 2004 | 1,461 | 1,456 | 13.9% | 1.4% | 6.5% | 0.3% | 2.3% | 8.2% | 67.4% |
| 2003 | 1,548 | 1,547 | 14.9% | 2.3% | 9.0% | 0.4% | 1.6% | 6.4% | 65.5% |
| 2002 | 1,514 | 1,514 | 11.8% | 2.0% | 11.7% | 1.1% | 3.2% | 8.0% | 62.4% |
| 2001 | 1,385 | 1,384 | 11.4% | 2.9% | 12.3% | 0.9% | 2.8% | 5.1% | 64.7% |
| 2000 | 1,477 | 1,477 | 13.4% | 2.4% | 9.9% | 1.1% | 3.3% | 7.1% | 62.9% |
| 1999 | 1,128 | 1,127 | 12.2% | 5.6% | 7.4% | 0.5% | 6.0% | 8.7% | 59.6% |
| 1998 | 895 | 895 | 12.0% | 4.3% | 3.9% | 1.1% | 16.7% | 6.7% | 55.4% |
| 1997 | 928 | 927 | 15.3% | 5.9% | 6.4% | 0.4% | 10.7% | 5.7% | 55.6% |
| 1996 | 869 | 865 | 16.8% | 7.3% | 6.1% | 1.6% | 5.7% | 4.5% | 58.0% |
| 1995 | 617 | 616 | 17.5% | 7.3% | 6.8% | 1.3% | 5.2% | 4.4% | 57.5% |
| 1994 | 446 | 445 | 20.9% | 7.6% | 8.1% | 0.9% | 5.6% | 4.7% | 52.1% |
| 1993 | 467 | 466 | 18.0% | 6.4% | 4.5% | 0.6% | 1.9% | 4.5% | 64.0% |
| 1992 | 442 | 440 | 28.2% | 4.6% | 3.6% | 1.8% | 2.7% | 5.0% | 54.1% |
Source: Treatment Episodes Data Set