| Value | Category |
|---|---|
| 0000 | NIU (not in universe) |
| 0100 | English |
| 0200 | German |
| 1000 | Italian |
| 1100 | French |
| 1200 | Spanish |
| 1300 | Portuguese |
| 1400 | Rumanian |
| 3102 | Hindi |
| 3190 | Other Indo-European languages |
| 4300 | Chinese |
| 5400 | Filipino, Tagalog |
| 5440 | Llocano, Hocano |
| 5700 | Arabic |
| 9410 | Other specified American Indian languages |