| Code | Country | Variable | www.Worldata.org ® © | Source |
| 1 | Afghanistan | Regime | Republic (17-07-1973) | PHW; SYB |
| 2 | Albania | Regime | Republic (11-01-1946) | PHW; SYB |
| 3 | Algeria | Regime | Republic (25-09-1962) | PHW; SYB |
| 4 | Andorra | Regime | Monarchy (Principality) | PHW; SYB |
| 5 | Angola | Regime | Republic (11-11-1975) | PHW; SYB |
| 6 | Antigua and Barbuda | Regime | Monarchy (Kingdom) | PHW; SYB |
| 7 | Argentina | Regime | Republic (09-07-1816) | PHW; SYB |
| 8 | Armenia | Regime | Republic (SSR: 29-11-1920) | PHW; SYB |
| 9 | Australia | Regime | Monarchy (Kingdom) | PHW; SYB |
| 10 | Austria | Regime | Republic (12-11-1918) | PHW; SYB |
| 11 | Azerbaijan | Regime | Republic (SSR: 28-04-1920) | PHW; SYB |
| 12 | Bahamas | Regime | Monarchy (Kingdom) | PHW; SYB |
| 13 | Bahrain | Regime | Monarchy (Kingdom) | PHW; SYB |
| 14 | Bangladesh | Regime | Republic (16-12-1971) | PHW; SYB |
| 15 | Barbados | Regime | Monarchy (Kingdom) | PHW; SYB |
| 16 | Belarus | Regime | Republic (SSR: 01-01-1919) | PHW; SYB |
| 17 | Belgium | Regime | Monarchy (Kingdom) | PHW; SYB |
| 18 | Belize | Regime | Monarchy (Kingdom) | PHW; SYB |
| 19 | Benin | Regime | Republic (04-12-1958, 01-08-1960) | PHW; SYB |
| 20 | Bhutan | Regime | Monarchy (Kingdom) | PHW; SYB |
| 21 | Bolivia | Regime | Republic (06-08-1825) | PHW; SYB |
| 22 | Bosnia and Herzegovina | Regime | Republic (former Yugoslavia: 29-11-1945) | PHW; SYB |
| 23 | Botswana | Regime | Republic (30-09-1966) | PHW; SYB |
| 24 | Brazil | Regime | Republic (15-11-1889) | PHW; SYB |
| 25 | Brunei | Regime | Monarchy (Sultanate) | PHW; SYB |
| 26 | Bulgaria | Regime | Republic (08-09-1946) | PHW; SYB |
| 27 | Burkina Faso | Regime | Republic (11-12-1958, 05-08-1960) | PHW; SYB |
| 28 | Burundi | Regime | Republic (28-11-1966) | PHW; SYB |
| 29 | Cambodia | Regime | Monarchy (Kingdom) (return on 24 September 1993) | PHW; SYB |
| 30 | Cameroon | Regime | Republic (01-01-1960) | PHW; SYB |
| 31 | Canada | Regime | Monarchy (Kingdom) | PHW; SYB |
| 32 | Cape Verde | Regime | Republic (05-07-1975) | PHW; SYB |
| 33 | Central African Republic | Regime | Republic (01-12-1958, 13-08-1960) | PHW; SYB |
| 34 | Chad | Regime | Republic (11-08-1960) | PHW; SYB |
| 35 | Chile | Regime | Republic (18-09-1810) | PHW; SYB |
| 36 | China | Regime | Republic (12-02-1912) | PHW; SYB |
| 37 | Colombia | Regime | Republic (17-12-1819) | PHW; SYB |
| 38 | Comoros | Regime | Islamic Republic (06-07-1975) | PHW; SYB |
| 39 | Congo (Brazzaville) | Regime | Republic (15-08-1960) | PHW; SYB |
| 40 | Congo (Kinshasa) | Regime | Republic (30-06-1960) | PHW; SYB |
| 41 | Costa Rica | Regime | Republic (01-07-1823) | PHW; SYB |
| 42 | Côte d'Ivoire | Regime | Republic (07-08-1960) | PHW; SYB |
| 43 | Croatia | Regime | Republic (former Yugoslavia: 29-11-1945) | PHW; SYB |
| 44 | Cuba | Regime | Republic (10-12-1898) | PHW; SYB |
| 45 | Cyprus | Regime | Republic (14-12-1959) | PHW; SYB |
| 46 | Czech Republic | Regime | Republic (Czechoslovakia: 14-11-1918) | PHW; SYB |
| 47 | Denmark | Regime | Monarchy (Kingdom) | PHW; SYB |
| 48 | Djibouti | Regime | Republic (27-06-1977) | PHW; SYB |
| 49 | Dominica | Regime | Republic (03-11-1978) | PHW; SYB |
| 50 | Dominican Republic | Regime | Republic (27-02-1844) | PHW; SYB |
| 51 | East Timor | Regime | Republic (20 May 2002) | PHW; SYB |
| 52 | Ecuador | Regime | Republic (24-05-1822) | PHW; SYB |
| 53 | Egypt | Regime | Republic (18-06-1953) | PHW; SYB |
| 54 | El Salvador | Regime | Republic (15-09-1821) | PHW; SYB |
| 55 | Equatorial Guinea | Regime | Republic (12-10-1968) | PHW; SYB |
| 56 | Eritrea | Regime | Republic (Ethiopia: 12-09-1974) | PHW; SYB |
| 57 | Estonia | Regime | Republic (24-12-1918, SSR: 21-07-1940) | PHW; SYB |
| 58 | Ethiopia | Regime | Republic (12-09-1974) | PHW; SYB |
| 59 | Fiji Islands | Regime | Republic (07-10-1987) | PHW; SYB |
| 60 | Finland | Regime | Republic (06-12-1917) | PHW; SYB |
| 61 | France | Regime | Republic (22-09-1792) | PHW; SYB |
| 62 | Gabon | Regime | Republic (28-11-1958, 17-08-1960) | PHW; SYB |
| 63 | Gambia | Regime | Republic (24-04-1970) | PHW; SYB |
| 64 | Georgia | Regime | Republic (SSR: 25-02-1921) | PHW; SYB |
| 65 | Germany | Regime | Republic (28-11-1918) | PHW; SYB |
| 66 | Ghana | Regime | Republic (01-07-1960) | PHW; SYB |
| 67 | Greece | Regime | Republic (01-06-1973, 11-06-1975) | PHW; SYB |
| 68 | Grenada | Regime | Monarchy (Kingdom) | PHW; SYB |
| 69 | Guatemala | Regime | Republic (end of Mexican Empire: 1823) | PHW; SYB |
| 70 | Guinea | Regime | Republic (02-10-1958) | PHW; SYB |
| 71 | Guinea-Bissau | Regime | Republic (24-09-1973) | PHW; SYB |
| 72 | Guyana | Regime | Republic (23-02-1970) | PHW; SYB |
| 73 | Haiti | Regime | Republic (01-01-1804, 1859) | PHW; SYB |
| 74 | Honduras | Regime | Republic (end of Mexican Empire: 1823) | PHW; SYB |
| 75 | Hungary | Regime | Republic (16-11-1918) | PHW; SYB |
| 76 | Iceland | Regime | Republic (17-06-1944) | PHW; SYB |
| 77 | India | Regime | Republic (26-01-1950) | PHW; SYB |
| 78 | Indonesia | Regime | Republic (17-08-1945) | PHW; SYB |
| 79 | Iran | Regime | Islamic Republic (01-04-1979) | PHW; SYB |
| 80 | Iraq | Regime | Republic (14-07-1958) | PHW; SYB |
| 81 | Ireland | Regime | Republic (06-12-1921) | PHW; SYB |
| 82 | Israel | Regime | Republic (14-05-1948) | PHW; SYB |
| 83 | Italy | Regime | Republic (10-06-1946) | PHW; SYB |
| 84 | Jamaica | Regime | Monarchy (Kingdom) | PHW; SYB |
| 85 | Japan | Regime | Monarchy (Empire) | PHW; SYB |
| 86 | Jordan | Regime | Monarchy (Kingdom) | PHW; SYB |
| 87 | Kazakhstan | Regime | Republic (Autonomous SSR: 26-08-1920) | PHW; SYB |
| 88 | Kenya | Regime | Republic (12-12-1964) | PHW; SYB |
| 89 | Kiribati | Regime | Republic (12-07-1979) | PHW; SYB |
| 90 | Korea, North | Regime | Republic (09-09-1948) | PHW; SYB |
| 91 | Korea, South | Regime | Republic (15-08-1948) | PHW; SYB |
| 92 | Kuwait | Regime | Monarchy (Emirate) | PHW; SYB |
| 93 | Kyrgyzstan | Regime | Republic (Autonomous SSR: 01-02-1926) | PHW; SYB |
| 94 | Laos | Regime | Republic (02-12-1975) | PHW; SYB |
| 95 | Latvia | Regime | Republic (18-11-1918, SSR: 21-07-1940) | PHW; SYB |
| 96 | Lebanon | Regime | Republic (23-05-1926) | PHW; SYB |
| 97 | Lesotho | Regime | Monarchy (Kingdom) | PHW; SYB |
| 98 | Liberia | Regime | Republic (26-07-1847) | PHW; SYB |
| 99 | Libya | Regime | Republic (01-09-1969) | PHW; SYB |
| 100 | Liechtenstein | Regime | Monarchy (Principality) | PHW; SYB |
| 101 | Lithuania | Regime | Republic (02-11-1918, SSR: 21-07-1940) | PHW; SYB |
| 102 | Luxembourg | Regime | Monarchy (Grand Duchy) | PHW; SYB |
| 103 | Macedonia | Regime | Republic (former Yugoslavia: 29-11-1945) | PHW; SYB |
| 104 | Madagascar | Regime | Republic (26-02-1897) | PHW; SYB |
| 105 | Malawi | Regime | Republic (06-07-1966) | PHW; SYB |
| 106 | Malaysia | Regime | Monarchy (Sultanate) | PHW; SYB |
| 107 | Maldives | Regime | Republic (11-11-1968) | PHW; SYB |
| 108 | Mali | Regime | Republic (24-11-1958, 20-06-1960) | PHW; SYB |
| 109 | Malta | Regime | Republic (13-12-1974) | PHW; SYB |
| 110 | Marshall Islands | Regime | Republic (Constitution: 01-05-1979) | PHW; SYB |
| 111 | Mauritania | Regime | Islamic Republic (28-11-1958) | PHW; SYB |
| 112 | Mauritius | Regime | Republic (12-03-1992) | PHW; SYB |
| 113 | Mexico | Regime | Republic (end of Mexican Empire: 1823) | PHW; SYB |
| 114 | Micronesia, Federated States of | Regime | Republic (Constitution: 10-05-1979) | PHW; SYB |
| 115 | Moldova | Regime | Republic (Autonomous SSR: 12-10-1924) | PHW; SYB |
| 116 | Monaco | Regime | Monarchy (Principality) | PHW; SYB |
| 117 | Mongolia | Regime | Republic (29-12-1911) | PHW; SYB |
| 118 | Morocco | Regime | Monarchy (Kingdom) | PHW; SYB |
| 119 | Mozambique | Regime | Republic (25-06-1975) | PHW; SYB |
| 120 | Myanmar | Regime | Republic (04-01-1948) | PHW; SYB |
| 121 | Namibia | Regime | Republic (21-03-1990) | PHW; SYB |
| 122 | Nauru | Regime | Republic (31-01-1968) | PHW; SYB |
| 123 | Nepal | Regime | Monarchy (Kingdom) | PHW; SYB |
| 124 | Netherlands | Regime | Monarchy (Kingdom) | PHW; SYB |
| 125 | New Zealand | Regime | Monarchy (Kingdom) | PHW; SYB |
| 126 | Nicaragua | Regime | Republic (end of Mexican Empire: 1823) | PHW; SYB |
| 127 | Niger | Regime | Republic (18-12-1958, 03-08-1960) | PHW; SYB |
| 128 | Nigeria | Regime | Republic (01-10-1963) | PHW; SYB |
| 129 | Norway | Regime | Monarchy (Kingdom) | PHW; SYB |
| 130 | Oman | Regime | Islamic Monarchy (Sultanate) | PHW; SYB |
| 131 | Pakistan | Regime | Islamic Republic (23-03-1956) | PHW; SYB |
| 132 | Palau | Regime | Republic (01-01-1981) (Sty, 1995) | PHW; SYB |
| 133 | Panama | Regime | Republic (17-12-1819, 03-11-1903) | PHW; SYB |
| 134 | Papua New Guinea | Regime | Monarchy (Kingdom) | PHW; SYB |
| 135 | Paraguay | Regime | Republic (14-05-1811) | PHW; SYB |
| 136 | Peru | Regime | Republic (28-07-1821) | PHW; SYB |
| 137 | Philippines | Regime | Republic (10-12-1898) | PHW; SYB |
| 138 | Poland | Regime | Republic (10-11-1918) | PHW; SYB |
| 139 | Portugal | Regime | Republic (05-10-1910) | PHW; SYB |
| 140 | Qatar | Regime | Islamic Monarchy (Emirate) | PHW; SYB |
| 141 | Romania | Regime | Republic (30-12-1947) | PHW; SYB |
| 142 | Russia | Regime | Republic (Bolsheviks: 07-11-1917) | PHW; SYB |
| 143 | Rwanda | Regime | Republic (01-07-1962) | PHW; SYB |
| 144 | Saint Kitts and Nevis | Regime | Monarchy (Kingdom) | PHW; SYB |
| 145 | Saint Lucia | Regime | Monarchy (Kingdom) | PHW; SYB |
| 146 | Saint Vincent and the Grenadines | Regime | Monarchy (Kingdom) | PHW; SYB |
| 147 | Samoa | Regime | Monarchy (Kingdom) | PHW; SYB |
| 148 | San Marino | Regime | Republic (13th Century) | PHW; SYB |
| 149 | Sao Tome and Principe | Regime | Republic (12-07-1975) | PHW; SYB |
| 150 | Saudi Arabia | Regime | Islamic Monarchy (Kingdom) | PHW; SYB |
| 151 | Senegal | Regime | Republic (25-11-1958, 20-06-1960) | PHW; SYB |
| 152 | Seychelles | Regime | Republic (29-06-1976) | PHW; SYB |
| 153 | Sierra Leone | Regime | Republic (19-04-1971) | PHW; SYB |
| 154 | Singapore | Regime | Republic (22-12-1965) | PHW; SYB |
| 155 | Slovakia | Regime | Republic (Czechoslovakia: 14-11-1918) | PHW; SYB |
| 156 | Slovenia | Regime | Republic (former Yugoslavia: 29-11-1945) | PHW; SYB |
| 157 | Solomon Islands | Regime | Monarchy (Kingdom) | PHW; SYB |
| 158 | Somalia | Regime | Republic (01-07-1960) | PHW; SYB |
| 159 | South Africa | Regime | Republic (31-05-1961) | PHW; SYB |
| 160 | Spain | Regime | Monarchy (Kingdom) (return on 22 Nov 1975) | PHW; SYB |
| 161 | Sri Lanka | Regime | Republic (22-05-1972) | PHW; SYB |
| 162 | Sudan | Regime | Republic (01-01-1956) | PHW; SYB |
| 163 | Suriname | Regime | Republic (25-11-1975) | PHW; SYB |
| 164 | Swaziland | Regime | Monarchy (Kingdom) | PHW; SYB |
| 165 | Sweden | Regime | Monarchy (Kingdom) | PHW; SYB |
| 166 | Switzerland | Regime | Republic (22-03-1798) | PHW; SYB |
| 167 | Syria | Regime | Republic (01-01-1944) | PHW; SYB |
| 168 | Tajikistan | Regime | Republic (Autonomous SSR: 14-10-1924) | PHW; SYB |
| 169 | Tanzania | Regime | Republic (09-12-1962) | PHW; SYB |
| 170 | Thailand | Regime | Monarchy (Kingdom) | PHW; SYB |
| 171 | Togo | Regime | Republic (27-04-1960) | PHW; SYB |
| 172 | Tonga | Regime | Monarchy (Kingdom) | PHW; SYB |
| 173 | Trinidad and Tobago | Regime | Republic (31-08-1976) | PHW; SYB |
| 174 | Tunisia | Regime | Republic (25-07-1957) | PHW; SYB |
| 175 | Turkey | Regime | Republic (29-10-1923) | PHW; SYB |
| 176 | Turkmenistan | Regime | Republic (SSR: 27-10-1924) | PHW; SYB |
| 177 | Tuvalu | Regime | Monarchy (Kingdom) | PHW; SYB |
| 178 | Uganda | Regime | Republic (08-09-1967) | PHW; SYB |
| 179 | Ukraine | Regime | Republic (SSR: 25-12-1917) | PHW; SYB |
| 180 | United Arab Emirates (UAE) | Regime | Monarchy (Emirate) | PHW; SYB |
| 181 | United Kingdom (UK) | Regime | Monarchy (Kingdom) | PHW; SYB |
| 182 | United States of America (USA) | Regime | Republic (04-07-1776) | PHW; SYB |
| 183 | Uruguay | Regime | Republic (25-08-1825) | PHW; SYB |
| 184 | Uzbekistan | Regime | Republic (SSR: 27-10-1924) | PHW; SYB |
| 185 | Vanuatu | Regime | Republic (30-07-1980) | PHW; SYB |
| 186 | Vatican | Regime | Monarchy (Papacy) | PHW; SYB |
| 187 | Venezuela | Regime | Republic (17-12-1819) | PHW; SYB |
| 188 | Vietnam | Regime | Republic (02-09-1945) | PHW; SYB |
| 189 | Yemen | Regime | Republic (North Yemen: 27-09-1962) | PHW; SYB |
| 190 | Yugoslavia | Regime | Republic (former Yugoslavia: 29-11-1945) | PHW; SYB |
| 191 | Zambia | Regime | Republic (24-10-1964) | PHW; SYB |
| 192 | Zimbabwe | Regime | Republic (18-04-1980) | PHW; SYB |
| 193 | World | Regime | na | na |