type Subregion = None
| AustraliaAndNewZealand
| Caribbean
| CentralAmerica
| CentralAsia
| EasternAfrica
| EasternAsia
| EasternEurope
| Melanesia
| Micronesia
| MiddleAfrica
| NorthernAfrica
| NorthernAmerica
| NorthernEurope
| Polynesia
| SouthAmerica
| SouthEasternAsia
| SouthernAfrica
| SouthernAsia
| SouthernEurope
| WesternAfrica
| WesternAsia
| WesternEurope
The subregion of a country.