| Argentina 1991 | — | — | 5.0 % |
| Australia 1991 | — | — | 22.3 % |
| Austria 1991 | — | — | 18.2 % |
| Belize 1991 | — | — | 15.4 % |
| Bhutan 1991 | — | — | 5.2 % |
| Bolivia 1991 | — | — | 7.9 % |
| Botswana 1991 | — | — | 25.6 % |
| Bulgaria 1991 | — | — | 22.3 % |
| Burundi 1991 | — | — | 15.1 % |
| Cameroon 1991 | — | — | 8.9 % |
| Chile 1991 | — | — | 15.1 % |
| Costa Rica 1991 | — | — | 10.6 % |
| Denmark 1991 | — | — | 29.1 % |
| Dominican Republic 1991 | — | — | 7.6 % |
| Egypt 1991 | — | — | 14.7 % |
| Ethiopia 1991 | — | — | 7.3 % |
| Fiji 1991 | — | — | 21.9 % |
| Finland 1991 | — | — | 24.4 % |
| France 1991 | — | — | 19.1 % |
| Germany 1991 | 59.3 % | — | 11.6 % |
| Ghana 1991 | — | — | 13.2 % |
| Guatemala 1991 | — | — | 7.3 % |
| Guinea 1991 | — | — | 7.4 % |
| India 1991 | — | — | 10.2 % |
| Indonesia 1991 | — | — | 17.2 % |
| Iran 1991 | — | — | 6.2 % |
| Italy 1991 | — | — | 24.8 % |
| Jordan 1991 | — | — | 17.9 % |
| Lesotho 1991 | — | — | 27.8 % |
| Malta 1991 | — | — | 18.5 % |
| Mauritius 1991 | — | — | 20.0 % |
| Mexico 1991 | — | — | 11.6 % |
| Morocco 1991 | — | — | 18.4 % |
| Namibia 1991 | — | — | 27.0 % |
| Nepal 1991 | — | — | 6.6 % |
| Netherlands 1991 | — | — | 24.5 % |
| Norway 1991 | — | — | 21.7 % |
| Peru 1991 | — | — | 11.0 % |
| Philippines 1991 | — | — | 12.8 % |
| Romania 1991 | — | — | 22.5 % |
| Rwanda 1991 | — | — | 9.3 % |
| Saint Kitts and Nevis 1991 | — | — | 14.6 % |
| Saint Vincent and the Grenadines 1991 | — | — | 19.6 % |
| Singapore 1991 | — | — | 15.2 % |
| South Africa 1991 | — | — | 21.0 % |
| South Korea 1991 | — | — | 12.2 % |
| Sri Lanka 1991 | — | — | 18.3 % |
| Sweden 1991 | — | — | 19.7 % |
| Switzerland 1991 | — | — | 7.6 % |
| Tunisia 1991 | — | — | 20.4 % |
| Türkiye 1991 | — | — | 12.5 % |
| United Kingdom 1991 | — | — | 24.8 % |
| Uruguay 1991 | — | — | 16.8 % |
| Zambia 1991 | — | — | 17.5 % |