| Year | Rep/Lean Rep | Dem/Lean Dem |
|---|---|---|
| 1992 | ||
| 1994 | 24 | 69 |
| 1995 | 27 | 68 |
| 1996 | 28 | 68 |
| 1997 | 28 | 66 |
| 1998 | 24 | 69 |
| 1999 | 23 | 71 |
| 2000 | 18 | 74 |
| 2001 | 22 | 70 |
| 2002 | 23 | 71 |
| 2003 | 25 | 69 |
| 2004 | 22 | 70 |
| 2005 | 21 | 73 |
| 2006 | 25 | 70 |
| 2007 | 23 | 69 |
| 2008 | 21 | 72 |
| 2009 | 25 | 66 |
| 2010 | 31 | 63 |
| 2011 | 29 | 65 |
| 2012 | 24 | 71 |
| 2013 | 29 | 66 |
| 2014 | 28 | 67 |
| 2015 | 31 | 65 |
| 2016 | 23 | 74 |
| 2017 | 31 | 67 |
- Report
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