| Value | Category | 
|---|---|
| 1 | Educational institution | 
| 2 | Hospital | 
| 3 | Other welfare institution | 
| 4 | Religious institution (not already included in 1-3) | 
| 5 | Workers' hostel, working quarters at building sites, student hostel, university accommodation, etc. | 
| 6 | Military establishment | 
| 7 | Other (e.g. prison) | 
| 9 | Not applicable |