
| Country | Shares 2015 | Votes | Year of Joining | Year of ceasing to be a member | Rejoining | Rejoining | |
| 1 | Algeria | 1 | 1 | 2009 | |||
| 2 | Argentina | 1 | 1 | 1951 | 1984 | ||
| 3 | Australia | 4 | 3 | 1925 | |||
| 4 | Austria | 2 | 2 | 1957 | |||
| 5 | Belgium | 4 | 3 | 1922 | |||
| Bolivia | 0 | 0 | 1963 | ||||
| 6 | Brazil | 8 | 4 | 1951 | |||
| Bulgaria | 0 | 0 | 1957 | ||||
| Cameroon | 1 | 1 | 2009 | 2017 | |||
| 7 | Canada | 8 | 4 | 1922 | |||
| 8 | Chile | 1 | 1 | 1984 | |||
| 9 | China – Beijing | 15 | 5 | 1984 | |||
| 10 | China – Taipei | 5 | 3 | 1984 | |||
| Colombia | 1 | 1 | 2009 | 2017 | |||
| 11 | Costa Rica | 1 | 1 | 2009 | |||
| 12 | Croatia | 1 | 1 | 1993 | |||
| Cuba | 1 | 1 | 1969 | No voting rights | |||
| 13 | Cyprus | 1 | 1 | 2003 | |||
| 14 | Czech Republic | 4 | 3 | 1993 | |||
| Czecho-Slovakia | 0 | 0 | 1923 | ||||
| 15 | Denmark | 3 | 2 | 1922 | |||
| Egypt | 1 | 1 | 1948 | 2017 | |||
| 16 | Estonia | 1 | 1 | 2002 | |||
| 17 | Ethiopia | 1 | 1 | 2009 | No voting rights | ||
| 18 | Finland | 3 | 2 | 1947 | |||
| 19 | France | 15 | 5 | 1922 | |||
| 20 | Germany | 15 | 5 | 1954 | |||
| East Germany | 1960 | ||||||
| 21 | Ghana | 1 | 1 | ? | |||
| 22 | Greece | 1 | 1 | 2009 | |||
| Holland | 0 | 0 | 1922 | ||||
| 23 | Hungary | 3 | 2 | 1948 | |||
| 24 | India | 8 | 4 | 1948 | |||
| 25 | Iran | 1 | 1 | ? | |||
| 26 | Ireland | 1 | 1 | 1966 | |||
| 27 | Israel | 2 | 2 | 1951 | |||
| 28 | Italy | 12 | 5 | 1923 | |||
| 29 | Japan | 15 | 5 | 1922 | |||
| 30 | Jordan | 2 | 1 | 2018 | |||
| Kenya | 1 | 1 | 1995 | 2017 | |||
| 31 | Korea | 10 | 5 | 1969 | |||
| 32 | Latvia | 1 | 1 | 2002 | |||
| 33 | Lithuania | 1 | 1 | 2002 | |||
| 34 | Mexico | 2 | 2 | 1925 | |||
| Mongolia | 1 | 1 | 2009 | 2017 | |||
| 35 | Netherlands | 4 | 3 | 1922 | |||
| 36 | New Zealand | 1 | 1 | 1954 | |||
| Nigeria | 0 | 0 | 1990 | ||||
| 37 | Norway | 3 | 2 | 1922 | |||
| 38 | Pakistan | 0 | 0 | 1951 | 2017 | ||
| 39 | Peru | 1 | 1 | 2009 | |||
| 40 | Philippines | 1 | 1 | 2009 | |||
| 41 | Poland | 4 | 3 | 1922 | |||
| 42 | Portugal | 1 | 1 | 1984 | |||
| Republic of China | 1934 | 1984 | |||||
| 43 | Romania | 1 | 1 | 1947 | 1960-1987 | 2009 | |
| 44 | Russia | 18 | 6 | 1957 | |||
| 45 | Saudi Arabia | 1 | 1 | 1990 | |||
| 46 | Senegal | 1 | 1 | ? | No voting rights | ||
| 47 | Singapore | 2 | 2 | 2009 | |||
| 48 | Slovak Republic | 1 | 1 | 1993 | |||
| 49 | Slovenia | 1 | 1 | 1993 | |||
| 50 | South Africa | 3 | 2 | 1922 | |||
| 51 | Spain | 8 | 4 | 1922 | |||
| 52 | Sweden | 8 | 4 | 1923 | |||
| 53 | Switzerland | 4 | 3 | 1922 | |||
| 54 | Tunisia | 1 | 1 | 2005 | |||
| 55 | UK | 15 | 5 | 1922 | |||
| 56 | USA | 18 | 6 | 1922 | |||
| Yugoslavia | 0 | 0 | 1954 | 1992 |