| 2004 30 September - 02 October | MADRID (Spain) |
| 2003 09 - 11 October | KRAKOW (Poland) |
| 2002 08 - 12 October | DUBROVNIK (Croatia) |
| 2001 16 - 20 October | MONTREUX (Switzerland) |
| 2000 25 - 30 September | LINKÖPING (Sweden) |
| 1999 18 - 23 October | LIMASSOL (Cyprus) |
| 1998 28 Sep - 03 Oct | TOULOUSE (France) |
| 1997 20 - 25 October | RIO de JANEIRO (Brazil) (President Report) |
| 1996 14 - 20 October | BLED (Slovenia) (President Report) |
| 1995 06 - 13 October | SUN CITY (South Africa) |
| 1994 09 - 15 October | ANTALYA (Turkey) |
| 1993 11 - 17 October | TEL-AVIV (Israel) |
| 1992 13 - 19 September | ATHENS (Greece) |
| 1991 29 September - 5 October | BERLIN (Germany) |
| 1990 7 - 13 October | BUDAPEST (Hungary) |
| 1989 25 - 30 September | VARNA (Bulgaria) |
| 1988 9 - 15 October | SYDNEY (Australia) |
| 1987 06 - 11 September | STOCKHOLM (Sweden) |
| 1986 29 September - 4 October | MADRID (Spain) |
| 1985 17 - 23 November | NEW DELHI (India) |
| 1984 26 October - 01 November | PRAGUE (Czechoslovakia) |
| 1983 25 - 30 September | LOS ANGELES (U.S.A.) |
| 1982 12 - 18 September | BRUSSELS (Belgium) |
| 1981 26 - 30 October | TOKYO (Japan) |
| 1980 02 - 08 November | AUCKLAND (New Zealand) |
| 1979 28 October - 03 November | NICOSIA (Cyprus) |
| 1978 21 - 28 October | SANTIAGO DE CHILE (Chile) |
| 1977 02 - 08 October | ROME (Italy) |
| 1976 01 - 07 October | TEHRAN (Iran) |
| 1975 22 - 26 September | OTTAWA (Canada) |
| 1974 27 October - 2 November | SYDNEY (Australia) |
| 1973 2 - 7 September | DUBLIN (Ireland) |
| 1972 01 - 7 October | PARIS (France) |
| 1971 26 September - 2 October | LUCERNE (Switzerland) |
| 1970 21 - 28 November | NEW DELHI (India) |
| 1969 13 - 20 July | HELSINKI (Finland) |
| 1968 28 - 30 November | LONDON (United Kingdom) |
| 1967 8 - 15 October | ATHENS (Greece) |
| 1966 26 November - 4 December | SANTIAGO DE CHILE (Chile) |
| 1965 12 - 20 September | MUNICH (Germany) |
| 1964 17 - 25 October | TEL-AVIV (Israel) |
| 1963 12 - 22 October | MEXICO (Mexico) |
| 1962 26 September - 2 October | ATHENS (Greece) |
| 1961 12 - 22 October | MONACO |
| 1960 2 - 10 October | BARCELONA (Spain) |
| 1959 25 May - 2 June | MOSCOW (U.S.S.R.) |
| 1958 11 - 16 April | LOS ANGELES (U.S.A.) |
| 1957 22 - 29 June | PALERMO (Italy) |
| 1956 14 - 20 May | VIENNA (Austria) |
| 1955 17 - 25 June | PARIS (France) |
| 1954 20 - 27 September | ISTANBUL (Turkey) |
| 1953 14 - 22 May | THE HAGUE (The Netherlands) |
| 1952 3 - 11 May | MADRID (Spain) |
| 1951 4 - 11 July | BRUSSELS (Belgium) |
| 1950 28 May - 4 June | STOCKHOLM (Sweden) |
| 1949 2 - 9 September | CLEVELAND (U.S.A.) |
| 1948 26 September - 2 October | PARIS (France) |
| 1947 13 - 20 September | GENEVA (Switzerland) |
| 1946 10 - 13 September | LONDON (United Kingdom) |
| 1938 23 - 28 June | BERLIN (Germany) |
| 1937 22 - 27 June | LONDON (United Kingdom) |
| 1936 24 - 30 August | WARSAW (Poland) |
| 1935 9 - 12 September | DUBROVNIK (Yugoslavia) |
| 1934 6 - 12 October | WASHINGTON (U.S.A.) |
| 1933 20 - 25 December | CAIRO (Egypt) |
| 1933 10 January | PARIS (France) Extraordinary Conference |
| 1932 5 - 9 September | THE HAGUE (The Netherlands) |
| 1932 15 January | PARIS (France) Extraordinary Conference |
| 1931 6 - 14 June | BUCHAREST (Romania) |
| 1930 01 December | PARIS (France) Extraordinary Conference |
| 1930 10 - 15 June | PARIS (France) |
| 1929 19 - 22 June | COPENHAGEN (Denmark) |
| 1929 11 January | PARIS (France) Extraordinary Conference |
| 1928 24 - 26 June | BRUSSELS (Belgium) |
| 1928 5 January | PARIS (France) Extraordinary Conference |
| 1927 14 - 19 August | ZURICH (Switzerland) |
| 1926 9 - 19 October | ROME (Italy) |
| 1925 19 - 28 September | PRAGUE (Czechoslovakia) |
| 1924 21 - 29 June | PARIS (France) |
| 1923 8 - 12 August | GOTEBORG (Sweden) |
| 1922 10 - 16 October | ROME (Italy) |
| 1921 26 - 28 October | MADRID (Spain) |
| 1920 8 - 10 September | GENEVA (Switzerland) |
| 1919 22 - 24 October | BRUSSELS (Belgium) |
| 1919 19 - 21 May | PARIS (France) |
| 1913 31 July - 02 August | SCHEVENINGUEN-THE-HAGUE (The Netherlands) |
| 1913 28 - 29 January | PARIS (France) Extraordinary Conference |
| 1912 20 - 22 June | VIENNA (Austria) |
| 1911 25 - 27 November | ROME (Italy) |
| 1911 10 January | PARIS (France) Extraordinary Conference |
| 1910 27 - 28 October | PARIS (France) |
| 1909 30 September - 01 October | ZURICH (Switzerland) |
| 1909 11 - 12 January | LONDON (United Kingdom) Extraordinary Conference |
| 1908 27 - 29 May | LONDON (United Kingdom) |
| 1907 13 - 14 September | BRUSSELS (Belgium) |
| 1906 15 October | BERLIN (Germany) |
| 1905 12 - 14 October | PARIS (France) |