| Code | Label |
| -1 | Don’t know |
| 1601 | Yemen. Also South Yemen, Yemen (republic of), Socotra, People's Democratic Republic of Yemen, Aden, Yemen (South), Yemen (North), North Yemen, Yemen Arab Republic |
| 1602 | Afghanistan |
| 1603 | Albania |
| 1604 | Algeria |
| 1605 | Andorra |
| 1606 | Angola. Also Cabinda, Portuguese West Africa, West Africa (Portuguese) |
| 1607 | Antigua and Barbuda. Also Barbuda and Antigua |
| 1608 | Argentina |
| 1609 | Australia. Also Christmas Island, Norfolk Island, Keeling Islands, Cocos Islands |
| 1610 | Austria |
| 1611 | Bahamas |
| 1612 | Bahrain |
| 1613 | Barbados |
| 1614 | Belgium |
| 1615 | Bermuda |
| 1616 | Bhutan |
| 1617 | Bolivia |
| 1618 | Botswana. Also Bechuanaland |
| 1619 | Brazil |
| 1620 | Brunei |
| 1621 | Bulgaria |
| 1622 | Burma. Also Myanmar |
| 1623 | Burundi. Also Urundi |
| 1624 | Cambodia. Also Kampuchea, Khmer Republic |
| 1625 | Cameroon |
| 1626 | Canada |
| 1627 | Central African Republic |
| 1628 | Sri Lanka. Also Ceylon |
| 1629 | Chad. Also Tchad |
| 1630 | Chile |
| 1631 | China (People's Republic of) |
| 1632 | Colombia |
| 1633 | Congo (Democratic Republic). Also Belgian Congo, Zaire |
| 1634 | Congo (People's Republic). Also Congolese Republic Brazzaville |
| 1635 | Costa Rica |
| 1636 | Cuba |
| 1637 | Dutch West Indies. Also Bonaire, Aruba, Curacao (Dutch), Dutch Curacao, Saba, Netherlands Antilles, St Martin (South), St Eustatius, Antilles (Netherlands) |
| 1638 | Cyprus |
| 1639 | Czech Republic. Also Czechoslovakia |
| 1640 | Benin. Also Dahomey |
| 1641 | Denmark |
| 1642 | Dominica |
| 1643 | Dominican Republic |
| 1645 | Ecuador. Also Galapagos |
| 1646 | El Salvador. Also Salvador |
| 1647 | Tuvalu. Also Ellice Islands |
| 1648 | Ethiopia. Also Abyssinia |
| 1649 | Falkland Islands |
| 1650 | Fiji |
| 1651 | Finland |
| 1652 | Taiwan. Also China (Taiwan), Formosa |
| 1653 | France. Also French Guiana, French Overseas Depts (DCMS), French West Indies, Miquelon (St Pierre and), St Pierre and Miquelon, St Martin (North), Reunion, Martinique, Guadeloupe, Guiana (French) |
| 1654 | Gabon |
| 1655 | Gambia. Also Senegambia |
| 1656 | Germany |
| 1658 | Ghana. Also Gold Coast |
| 1659 | Gibraltar |
| 1660 | Kiribati. Also Gilbert Islands |
| 1661 | Greece. Also Crete, Corfu |
| 1662 | Grenada |
| 1663 | Guatemala |
| 1664 | Guinea. Also Guinea (French) |
| 1665 | Guyana. Also British Guiana, Guiana (British) |
| 1666 | Haiti |
| 1667 | Honduras |
| 1668 | Belize. Also British Honduras, Honduras British |
| 1669 | Hong Kong |
| 1670 | Hungary |
| 1671 | Iceland |
| 1672 | India. Also Sikkim |
| 1673 | Indonesia. Also Kalimantan (South Borneo), West Timor, Celebes, Borneo South, Sumatra, Maluku, West Irian, Timor (East) Portuguese, Sulawesi, South Borneo, Java, Irian Jaya, Irian Barat, Irian (West), Timor (West), Molluccas, Portuguese Timor |
| 1674 | Iran. Also Persia |
| 1675 | Iraq |
| 1676 | Irish Republic. Also Ireland (Republic of), Eire |
| 1677 | Israel |
| 1678 | Italy. Also Holy See, Vatican City |
| 1679 | Ivory Coast. Also Cote d'lvore |
| 1680 | Jamaica |
| 1681 | Japan |
| 1682 | Jordan |
| 1683 | Kenya |
| 1684 | South Korea. Also Korea, Republic of Korea (South Korea) |
| 1685 | North Korea. Also Korea North, Democratic People's Republic of Korea |
| 1686 | Kuwait |
| 1687 | Laos. Also Lao People's Democratic Republic |
| 1688 | Lebanon |
| 1689 | Leeward Islands (not otherwise specified) |
| 1690 | Lesotho. Also Basutoland |
| 1691 | Liberia |
| 1692 | Libya. Also Libyan Arab Jamahiriya, Great Socialist People's, Great Socialist People's Libyan Arab Jamahiriya |
| 1693 | Luxembourg |
| 1694 | Macao |
| 1695 | Madagascar. Also Malagasy Republic |
| 1696 | Malawi. Also Nyasaland |
| 1698 | Malaysia. Also Sarawak, North Borneo, Borneo North, Malaya, Sabah |
| 1699 | Mali |
| 1700 | Malta |
| 1701 | Mauritania |
| 1702 | Mauritius |
| 1703 | Mexico |
| 1704 | Mongolia. Also Outer Mongolia |
| 1705 | Montserrat |
| 1706 | Morocco. Also Western Sahara, Sahara (West), Tangier |
| 1707 | Mozambique. Also East Africa (Portuguese), Portuguese East Africa |
| 1708 | Oman. Also Muscat and Oman |
| 1709 | Nepal |
| 1710 | Netherlands. Also Holland |
| 1713 | Vanuatu. Also New Hebrides |
| 1714 | New Zealand. Also Niue, Tokelau, Cokelau, Cook Islands |
| 1715 | Nicaragua |
| 1716 | Niger |
| 1717 | Nigeria |
| 1718 | Norway |
| 1721 | Pakistan. Also Pakistan (West) |
| 1722 | Panama |
| 1723 | Papua New Guinea. Also New Guinea |
| 1724 | Paraguay |
| 1725 | Peru |
| 1726 | Philippines |
| 1727 | Poland |
| 1728 | Portugal. Also Madeira, Azores |
| 1730 | Puerto Rico |
| 1731 | Qatar |
| 1732 | Zimbabwe. Also Rhodesia Southern, Southern Rhodesia |
| 1733 | Romania. Also Rumania |
| 1734 | Rwanda |
| 1735 | St Helena Dependencies. Also Ascension, Tristan de Cunha |
| 1736 | St Kitts and Nevis. Also St. Christopher and Nevis |
| 1737 | St Lucia |
| 1738 | St Vincent and the Grenadines. Also Grenadines |
| 1741 | Samoa. Also Western Samoa |
| 1743 | Saudi Arabia |
| 1744 | Seychelles |
| 1745 | Sierra Leone |
| 1746 | Singapore |
| 1747 | Solomon Islands |
| 1748 | Somalia. Also Somali Democratic Republic |
| 1749 | Djibouti. Also Afars and Issas Territory, Somaliland (French), French Somaliland, French Territory of the Afars and Issas |
| 1750 | South Africa |
| 1751 | Spain. Also Melilla, Ceuta, Canary Islands, Balearic Islands |
| 1752 | Sudan |
| 1753 | Surinam. Also Guiana (Dutch), Dutch Guiana, Suriname |
| 1754 | Swaziland |
| 1755 | Sweden |
| 1756 | Switzerland |
| 1757 | Syria. Also Syrian Arab Republic |
| 1759 | Tanzania. Also Tanganyika, Zanzibar |
| 1760 | Thailand. Also Siam |
| 1762 | Togo |
| 1763 | Trinidad and Tobago |
| 1764 | United Arab Emirates. Also Umm al-Qaiwan, Trucial States, Sharjah, Fujairah, Abu Dhabi, Ajman, Dubai, Ras al-Khaimah |
| 1765 | Tunisia |
| 1766 | Turkey |
| 1767 | Uganda |
| 1768 | Egypt. Also United Arab Republic |
| 1769 | Burkina. Also Burkina-Faso, Upper Volta |
| 1770 | Uruguay |
| 1771 | United States. Also USA, Northern Marianas, Commonwealth of, Virgin Islands (US) |
| 1772 | CIS (Commonwealth of Independent States). Also USSR (not otherwise specified), USSR |
| 1773 | Venezuela |
| 1774 | Vietnam |
| 1776 | British Virgin Islands. Also Virgin Islands (British) |
| 1777 | West Indies (not otherwise specified) |
| 1778 | Windward Islands (not otherwise specified) |
| 1780 | Serbia and Montenegro |
| 1781 | Zambia. Also Rhodesia Northern, North Rhodesia |
| 1782 | Not known |
| 1783 | Stateless |
| 1784 | Tonga |
| 1785 | Senegal |
| 1787 | Bangladesh. Also Pakistan (East), East Pakistan |
| 1788 | Cape Verde Islands |
| 1789 | Cayman Islands |
| 1790 | Equatorial Guinea. Also Guinea (Equatorial), Guinea (Spanish), Spanish Guinea |
| 1793 | Maldives. Also Maldive Islands |
| 1796 | US Trust Territories of the Pacific Islands (inc. America Samoa and the Trust Territories). Also Palau, Guam, Trust Territories American, American Samoa, American Trust Territories, Samoa (US), Pacific Territories US |
| 1798 | Namibia. Also South West Africa |
| 1799 | Turks and Caicos Islands |
| 1801 | British Antarctic Territory. Also British Antarctica, Antarctica British |
| 1802 | Guinea-Bissau. Also Portuguese Guinea, Guinea (Portuguese) |
| 1803 | Sao Tome and Principe. Also Principe (Sao Tome) |
| 1804 | Comoros |
| 1805 | Nauru |
| 1821 | Mayotte. Also French Territorial Collectives |
| 1822 | French Possessions not otherwise specified. Also French Polynesia, New Caledonia, Antarctica French, French Overseas Territories (TCMS), Loyalty Islands, Polynesia (French), Marquesas Islands, Tahiti, Society Islands, Wallis and Futuna |
| 1823 | Pitcairn Islands |
| 1824 | Anguilla |
| 1825 | Monaco |
| 1826 | San Marino |
| 1827 | Liechtenstein |
| 1828 | Greenland. Also Faroe Islands |
| 1829 | British Indian Ocean Territory. Also Chagos Archipelago, Indian Ocean Territory (British) |
| 1830 | South Georgia and the South Sandwich Islands |
| 1831 | Estonia |
| 1832 | Latvia |
| 1833 | Lithuania |
| 1834 | Croatia |
| 1835 | Slovenia |
| 1836 | Armenia |
| 1837 | Azerbaijan |
| 1838 | Belarus. Also Byelorussia |
| 1839 | Kazakhstan |
| 1840 | Kyrgyzstan. Also Kirgizia |
| 1841 | Moldova. Also Moldavia |
| 1842 | Russia |
| 1843 | Tajikistan |
| 1844 | Turkmenistan |
| 1845 | Ukraine |
| 1846 | Uzbekistan |
| 1847 | Georgia |
| 1850 | Slovakia |
| 1851 | Macedonia. Also Skopje |
| 1853 | Bosnia and Herzegovina |
| 1860 | Eritrea |
| 1861 | Marshall Islands |
| 1862 | Micronesia. Also Kosrae, Ponape, Chuuk, Yap, Truk, Caroline Islands |
| 1863 | East Timor |
| 1864 | Kosovo |
| 3826 | Channel Islands (The) |
| 4826 | Isle of Man (the) |
| 5826 | England |
| 6826 | Wales |
| 7826 | Scotland |
| 8826 | Northern Ireland |
| XXXX | Question not answered (default) |
