The above shows the number of legislative houses by country, in other words it shows if a country is Unicameral or Bicameral.
1. Saudi Arabia is the only country in the world with no legislative body, even the other Absolute Monarchies and non-democracies have Legislatures of some sort.
2. Puntland and Iraqi Kurdistan are shown as separately since while being part of another country, effectively run themselves with the national government having little to no control.
3. The Channel Islands are shown separately because of their unique status, however Autonomous area in general are not.