| Year | Age | Sex | Race | Placement status | Most serious offense |
|---|---|---|---|---|---|
| 1997 | 4.3% | 0.3% | 0.6% | 2.6% | 0.8% |
| 1999 | 6.4% | 0.2% | 1.7% | 2.4% | 8.0% |
| 2001 | 3.4% | 1.7% | 3.6% | 0.6% | 6.3% |
| 2003 | 5.0% | 1.9% | 5.3% | 2.3% | 5.3% |
| 2006 | 1.2% | 0.8% | 2.5% | 2.0% | 1.5% |
| 2007 | 7.5% | 5.1% | 7.9% | 5.7% | 7.9% |
| 2010 | 1.4% | 1.3% | 1.3% | 1.8% | 1.7% |
| 2011 | 0.0% | 0.0% | 0.1% | 1.5% | 0.2% |
| 2013 | 1.5% | 1.9% | 8.8% | 2.2% | 8.1% |
| 2015 | 0.8% | 0.8% | 0.8% | 4.6% | 2.0% |
| 2017 | 2.7% | 4.1% | 2.8% | 6.4% | 1.6% |