Prime Minister (Taoiseach) of Ireland 1997-2008
Published in 2012 in partnership with the Walter and Duncan Gordon Foundation and the United Nations University Institute for Water, Environment and Health.
Prime Minister of Canada 1993-2003
Prime Minister of New Zealand 1990-1997
Secretary-General of the InterAction Council, 2011 to present
Chancellor of Austria 1986-1997
Proposed by the InterAction Council, 1 September 1997