ONU-United Nations, Economic Commission for Europe
1957-1995

OECD-Organisation for Economic Co-Operation and Development
1976-1978

OECD-Organisation for Economic Co-Operation and Development, IEA - International Energy Agency
2008-

United Nations, Department of Economic and Social Affairs, Statistics Division
1983-

OECD-Organisation for Economic Co-Operation and Development, IEA-International Energy Agency
1976

OECD-Organisation for Economic Co-Operation and Development, Directorate for Science, Technology and Industry
1984-1990

ONU-United Nations, Department of Economic Affairs
1952-1979

OECD-Organisation for Economic Co-Operation and Development, Steel Committee
1984-1991

FAO
1983-1989

OECD-Organisation for Economic Co-Operation and Development, IEA-International Energy Agency
2010-2015

ONU-United Nations, Economic Commission for Europe
1982-1986

United Nations, Economic Commission for Europe
1968-1991