| Value | Code Name | Code | Code System | Code Description |
|---|---|---|---|---|
| A big city (population >= 250,000) including suburbs/outskirts | A big city (population >= 250,000) including suburbs/outskirts | A big city (population >= 250,000) including suburbs/outskirts | ||
| A small town/ small city (population 500-10,000) | A small town/ small city (population 500-10,000) | A small town/ small city (population 500-10,000) | ||
| Rural area (population =< 500) | Rural area (population =< 500) | Rural area (population =< 500) | ||
| Unknown | Unknown | Unknown |