From 1991 until 1996 , he was the Senator of Finance in the state government of Eberhard Diepgen .
From March 1991 until December 1994 , he was a member of the administrative council of the trust institution .
From 1991 until 1996 , he was the Senator of Finance in the state government of Eberhard Diepgen and from March 1991 until December 1994 , he was a member of the administrative council of the trust institution .