| Year | Total | Total w/Source | Individual | Alcohol/Drug Abuse Care Provider | Other Health Care Provider | School | Employer | Other Community Referral | Criminal Justice System |
| 2006 | 1,260 | 1,187 | 31.3% | 7.1% | 6.2% | 1.1% | 2.4% | 0.2% | 51.9% |
| 2005 | 1,521 | 1,424 | 36.2% | 7.8% | 4.6% | 1.9% | 2.4% | 0.5% | 46.7% |
| 2004 | 2,007 | 1,929 | 31.7% | 5.4% | 5.1% | 1.9% | 2.0% | 0.2% | 53.8% |
| 2003 | 2,196 | 2,130 | 27.3% | 7.0% | 4.1% | 1.6% | 1.9% | 0.7% | 57.4% |
| 2002 | 2,096 | 2,011 | 29.0% | 8.7% | 4.2% | 1.1% | 3.2% | 0.1% | 53.7% |
| 2001 | 2,151 | 2,057 | 25.8% | 10.6% | 4.1% | 1.1% | 2.5% | 0.2% | 55.8% |
| 2000 | 1,671 | 1,592 | 28.5% | 11.4% | 4.5% | 1.3% | 2.2% | 0.4% | 51.8% |
| 1999 | 1,327 | 1,267 | 27.8% | 9.9% | 5.9% | 1.3% | 3.0% | 0.5% | 51.7% |
| 1998 | 1,112 | 1,081 | 23.7% | 16.2% | 4.4% | 0.8% | 3.1% | 0.2% | 51.7% |
| 1997 | 620 | 597 | 22.3% | 17.6% | 4.0% | 0.3% | 3.2% | 0.3% | 52.3% |
| 1996 | 398 | 384 | 17.5% | 32.8% | 5.0% | 1.0% | 1.3% | 42.5% | |
| 1995 | 279 | 267 | 24.7% | 4.9% | 6.4% | 0.8% | 2.6% | 0.4% | 60.3% |
Source: Treatment Episodes Data Set