| October 1979 | Elected to the House of Representatives (H.R.)
(35th General Election) |
| June 1980 | Elected to the H.R.
(36th General Election) |
| July 1986 | Elected to the H.R.
(38th General Election) |
December 1988
- June 1989 | Parliamentary Vice-Minister for Transport |
| February 1990 | Elected to the H.R.
(39th General Election) |
January 1991
- November 1991 | Chairman, Standing Committee on Transport, House of Representatives |
| July 1993 | Elected to the H.R.
(40th General Election) |
January 1996
- November 1996 | Minister of Transport |
| October 1996 | Elected to the H.R.
(41st General Election) |
September 1997
- July 1998 | Chairman, Standing Committee on Rules and Administration, House of Representatives |
| June 2000 | Elected to the H.R.
(42nd General Election) |
| April 2003 | Minister of Agriculture, Forestry and Fisheries |
