| Code | Country | Variable | www.Worldata.org ® © | Source |
| 1 | Afghanistan | Structure | Unitary | PHW; SYB |
| 2 | Albania | Structure | Unitary | PHW; SYB |
| 3 | Algeria | Structure | Unitary | PHW; SYB |
| 4 | Andorra | Structure | Unitary | PHW; SYB |
| 5 | Angola | Structure | Unitary | PHW; SYB |
| 6 | Antigua and Barbuda | Structure | Unitary | PHW; SYB |
| 7 | Argentina | Structure | Federal (01-05-1853) | PHW; SYB |
| 8 | Armenia | Structure | Unitary | PHW; SYB |
| 9 | Australia | Structure | Federal | PHW; SYB |
| 10 | Austria | Structure | Federal | PHW; SYB |
| 11 | Azerbaijan | Structure | Unitary | PHW; SYB |
| 12 | Bahamas | Structure | Unitary | PHW; SYB |
| 13 | Bahrain | Structure | Unitary | PHW; SYB |
| 14 | Bangladesh | Structure | Unitary | PHW; SYB |
| 15 | Barbados | Structure | Unitary | PHW; SYB |
| 16 | Belarus | Structure | Unitary | PHW; SYB |
| 17 | Belgium | Structure | Federal (06-02-1993) | PHW; SYB |
| 18 | Belize | Structure | Unitary | PHW; SYB |
| 19 | Benin | Structure | Unitary | PHW; SYB |
| 20 | Bhutan | Structure | Unitary | PHW; SYB |
| 21 | Bolivia | Structure | Unitary | PHW; SYB |
| 22 | Bosnia and Herzegovina | Structure | Federal (14-12-1995) | PHW; SYB |
| 23 | Botswana | Structure | Unitary | PHW; SYB |
| 24 | Brazil | Structure | Federal | PHW; SYB |
| 25 | Brunei | Structure | Unitary | PHW; SYB |
| 26 | Bulgaria | Structure | Unitary | PHW; SYB |
| 27 | Burkina Faso | Structure | Unitary | PHW; SYB |
| 28 | Burundi | Structure | Unitary | PHW; SYB |
| 29 | Cambodia | Structure | Unitary | PHW; SYB |
| 30 | Cameroon | Structure | Unitary (02-06-1972) | PHW; SYB |
| 31 | Canada | Structure | Federal | PHW; SYB |
| 32 | Cape Verde | Structure | Unitary | PHW; SYB |
| 33 | Central African Republic | Structure | Unitary | PHW; SYB |
| 34 | Chad | Structure | Unitary | PHW; SYB |
| 35 | Chile | Structure | Unitary | PHW; SYB |
| 36 | China | Structure | Unitary | PHW; SYB |
| 37 | Colombia | Structure | Unitary | PHW; SYB |
| 38 | Comoros | Structure | Federal | PHW; SYB |
| 39 | Congo (Brazzaville) | Structure | Unitary | PHW; SYB |
| 40 | Congo (Kinshasa) | Structure | Unitary | PHW; SYB |
| 41 | Costa Rica | Structure | Unitary | PHW; SYB |
| 42 | Côte d'Ivoire | Structure | Unitary | PHW; SYB |
| 43 | Croatia | Structure | Unitary | PHW; SYB |
| 44 | Cuba | Structure | Unitary | PHW; SYB |
| 45 | Cyprus | Structure | Unitary | PHW; SYB |
| 46 | Czech Republic | Structure | Unitary (01-01-1993) | PHW; SYB |
| 47 | Denmark | Structure | Unitary | PHW; SYB |
| 48 | Djibouti | Structure | Unitary | PHW; SYB |
| 49 | Dominica | Structure | Unitary | PHW; SYB |
| 50 | Dominican Republic | Structure | Unitary | PHW; SYB |
| 51 | East Timor | Structure | Unitary | PHW; SYB |
| 52 | Ecuador | Structure | Unitary | PHW; SYB |
| 53 | Egypt | Structure | Unitary | PHW; SYB |
| 54 | El Salvador | Structure | Unitary | PHW; SYB |
| 55 | Equatorial Guinea | Structure | Unitary | PHW; SYB |
| 56 | Eritrea | Structure | Unitary | PHW; SYB |
| 57 | Estonia | Structure | Unitary | PHW; SYB |
| 58 | Ethiopia | Structure | Federal (08-12-1994) | PHW; SYB |
| 59 | Fiji Islands | Structure | Unitary | PHW; SYB |
| 60 | Finland | Structure | Unitary | PHW; SYB |
| 61 | France | Structure | Unitary | PHW; SYB |
| 62 | Gabon | Structure | Unitary | PHW; SYB |
| 63 | Gambia | Structure | Unitary | PHW; SYB |
| 64 | Georgia | Structure | Unitary | PHW; SYB |
| 65 | Germany | Structure | Federal | PHW; SYB |
| 66 | Ghana | Structure | Unitary | PHW; SYB |
| 67 | Greece | Structure | Unitary | PHW; SYB |
| 68 | Grenada | Structure | Unitary | PHW; SYB |
| 69 | Guatemala | Structure | Unitary | PHW; SYB |
| 70 | Guinea | Structure | Unitary | PHW; SYB |
| 71 | Guinea-Bissau | Structure | Unitary | PHW; SYB |
| 72 | Guyana | Structure | Unitary | PHW; SYB |
| 73 | Haiti | Structure | Unitary | PHW; SYB |
| 74 | Honduras | Structure | Unitary | PHW; SYB |
| 75 | Hungary | Structure | Unitary | PHW; SYB |
| 76 | Iceland | Structure | Unitary | PHW; SYB |
| 77 | India | Structure | Federal | PHW; SYB |
| 78 | Indonesia | Structure | Unitary | PHW; SYB |
| 79 | Iran | Structure | Unitary | PHW; SYB |
| 80 | Iraq | Structure | Unitary | PHW; SYB |
| 81 | Ireland | Structure | Unitary | PHW; SYB |
| 82 | Israel | Structure | Unitary | PHW; SYB |
| 83 | Italy | Structure | Unitary | PHW; SYB |
| 84 | Jamaica | Structure | Unitary | PHW; SYB |
| 85 | Japan | Structure | Unitary | PHW; SYB |
| 86 | Jordan | Structure | Unitary | PHW; SYB |
| 87 | Kazakhstan | Structure | Unitary | PHW; SYB |
| 88 | Kenya | Structure | Unitary | PHW; SYB |
| 89 | Kiribati | Structure | Unitary | PHW; SYB |
| 90 | Korea, North | Structure | Unitary | PHW; SYB |
| 91 | Korea, South | Structure | Unitary | PHW; SYB |
| 92 | Kuwait | Structure | Unitary | PHW; SYB |
| 93 | Kyrgyzstan | Structure | Unitary | PHW; SYB |
| 94 | Laos | Structure | Unitary | PHW; SYB |
| 95 | Latvia | Structure | Unitary | PHW; SYB |
| 96 | Lebanon | Structure | Unitary | PHW; SYB |
| 97 | Lesotho | Structure | Unitary | PHW; SYB |
| 98 | Liberia | Structure | Unitary | PHW; SYB |
| 99 | Libya | Structure | Unitary (1963) | PHW; SYB |
| 100 | Liechtenstein | Structure | Unitary | PHW; SYB |
| 101 | Lithuania | Structure | Unitary | PHW; SYB |
| 102 | Luxembourg | Structure | Unitary | PHW; SYB |
| 103 | Macedonia | Structure | Unitary | PHW; SYB |
| 104 | Madagascar | Structure | Unitary | PHW; SYB |
| 105 | Malawi | Structure | Unitary | PHW; SYB |
| 106 | Malaysia | Structure | Federal | PHW; SYB |
| 107 | Maldives | Structure | Unitary | PHW; SYB |
| 108 | Mali | Structure | Unitary | PHW; SYB |
| 109 | Malta | Structure | Unitary | PHW; SYB |
| 110 | Marshall Islands | Structure | Unitary | PHW; SYB |
| 111 | Mauritania | Structure | Unitary | PHW; SYB |
| 112 | Mauritius | Structure | Unitary | PHW; SYB |
| 113 | Mexico | Structure | Federal | PHW; SYB |
| 114 | Micronesia, Federated States of | Structure | Federal | PHW; SYB |
| 115 | Moldova | Structure | Unitary | PHW; SYB |
| 116 | Monaco | Structure | Unitary | PHW; SYB |
| 117 | Mongolia | Structure | Unitary | PHW; SYB |
| 118 | Morocco | Structure | Unitary | PHW; SYB |
| 119 | Mozambique | Structure | Unitary | PHW; SYB |
| 120 | Myanmar | Structure | Unitary | PHW; SYB |
| 121 | Namibia | Structure | Unitary | PHW; SYB |
| 122 | Nauru | Structure | Unitary | PHW; SYB |
| 123 | Nepal | Structure | Unitary | PHW; SYB |
| 124 | Netherlands | Structure | Unitary | PHW; SYB |
| 125 | New Zealand | Structure | Unitary | PHW; SYB |
| 126 | Nicaragua | Structure | Unitary | PHW; SYB |
| 127 | Niger | Structure | Unitary | PHW; SYB |
| 128 | Nigeria | Structure | Federal | PHW; SYB |
| 129 | Norway | Structure | Unitary | PHW; SYB |
| 130 | Oman | Structure | Unitary | PHW; SYB |
| 131 | Pakistan | Structure | Federal | PHW; SYB |
| 132 | Palau | Structure | Unitary | PHW; SYB |
| 133 | Panama | Structure | Unitary | PHW; SYB |
| 134 | Papua New Guinea | Structure | Unitary | PHW; SYB |
| 135 | Paraguay | Structure | Unitary | PHW; SYB |
| 136 | Peru | Structure | Unitary | PHW; SYB |
| 137 | Philippines | Structure | Unitary | PHW; SYB |
| 138 | Poland | Structure | Unitary | PHW; SYB |
| 139 | Portugal | Structure | Unitary | PHW; SYB |
| 140 | Qatar | Structure | Unitary | PHW; SYB |
| 141 | Romania | Structure | Unitary | PHW; SYB |
| 142 | Russia | Structure | Federal | PHW; SYB |
| 143 | Rwanda | Structure | Unitary | PHW; SYB |
| 144 | Saint Kitts and Nevis | Structure | Federal | PHW; SYB |
| 145 | Saint Lucia | Structure | Unitary | PHW; SYB |
| 146 | Saint Vincent and the Grenadines | Structure | Unitary | PHW; SYB |
| 147 | Samoa | Structure | Unitary | PHW; SYB |
| 148 | San Marino | Structure | Unitary | PHW; SYB |
| 149 | Sao Tome and Principe | Structure | Unitary | PHW; SYB |
| 150 | Saudi Arabia | Structure | Unitary | PHW; SYB |
| 151 | Senegal | Structure | Unitary | PHW; SYB |
| 152 | Seychelles | Structure | Unitary | PHW; SYB |
| 153 | Sierra Leone | Structure | Unitary | PHW; SYB |
| 154 | Singapore | Structure | Unitary | PHW; SYB |
| 155 | Slovakia | Structure | Unitary (01-01-1993) | PHW; SYB |
| 156 | Slovenia | Structure | Unitary | PHW; SYB |
| 157 | Solomon Islands | Structure | Unitary | PHW; SYB |
| 158 | Somalia | Structure | Unitary | PHW; SYB |
| 159 | South Africa | Structure | Federal | PHW; SYB |
| 160 | Spain | Structure | Federal | PHW; SYB |
| 161 | Sri Lanka | Structure | Unitary | PHW; SYB |
| 162 | Sudan | Structure | Federal (05-02-1991) | PHW; SYB |
| 163 | Suriname | Structure | Unitary | PHW; SYB |
| 164 | Swaziland | Structure | Unitary | PHW; SYB |
| 165 | Sweden | Structure | Unitary | PHW; SYB |
| 166 | Switzerland | Structure | Federal | PHW; SYB |
| 167 | Syria | Structure | Unitary | PHW; SYB |
| 168 | Tajikistan | Structure | Unitary | PHW; SYB |
| 169 | Tanzania | Structure | Unitary | PHW; SYB |
| 170 | Thailand | Structure | Unitary | PHW; SYB |
| 171 | Togo | Structure | Unitary | PHW; SYB |
| 172 | Tonga | Structure | Unitary | PHW; SYB |
| 173 | Trinidad and Tobago | Structure | Unitary | PHW; SYB |
| 174 | Tunisia | Structure | Unitary | PHW; SYB |
| 175 | Turkey | Structure | Unitary | PHW; SYB |
| 176 | Turkmenistan | Structure | Unitary | PHW; SYB |
| 177 | Tuvalu | Structure | Unitary | PHW; SYB |
| 178 | Uganda | Structure | Unitary | PHW; SYB |
| 179 | Ukraine | Structure | Unitary | PHW; SYB |
| 180 | United Arab Emirates (UAE) | Structure | Federal | PHW; SYB |
| 181 | United Kingdom (UK) | Structure | Unitary | PHW; SYB |
| 182 | United States of America (USA) | Structure | Federal | PHW; SYB |
| 183 | Uruguay | Structure | Unitary | PHW; SYB |
| 184 | Uzbekistan | Structure | Unitary | PHW; SYB |
| 185 | Vanuatu | Structure | Unitary | PHW; SYB |
| 186 | Vatican | Structure | Unitary | PHW; SYB |
| 187 | Venezuela | Structure | Federal | PHW; SYB |
| 188 | Vietnam | Structure | Unitary | PHW; SYB |
| 189 | Yemen | Structure | Unitary | PHW; SYB |
| 190 | Yugoslavia | Structure | Federal | PHW; SYB |
| 191 | Zambia | Structure | Unitary | PHW; SYB |
| 192 | Zimbabwe | Structure | Unitary | PHW; SYB |
| 193 | World | Structure | na | na |