| Start | End | Election | Coalition | |
|---|---|---|---|---|
| 1990 (27 Oct) | 1994 (11 Sep) | Oct. 14, 1990 | CDU/CSU | details |
| 1994 (06 Oct) | 1999 (19 Sep) | Sept. 11, 1994 | CDU/CSU | details |
| 1999 (13 Oct) | 2002 (18 Apr) | Sept. 19, 1999 | CDU/CSU | details |
| 2002 (18 Apr) | 2004 (19 Sep) | (ministerial change) | CDU/CSU | details |
| 2004 (10 Nov) | 2008 (17 Jun) | Sept. 19, 2004 | CDU/CSU SPD | details |
| 2008 (18 Jun) | 2009 (20 Sep) | (ministerial change) | CDU/CSU SPD | details |
| 2009 (20 Sep) | --- | Aug. 30, 2009 | CDU/CSU FDP | details |