| Value | Category |
|---|---|
| 0 | |
| 1 | Saudi Arabia |
| 2 | Qatar |
| 3 | Kuwait |
| 4 | Oman |
| 5 | Malaysia |
| 6 | Singapore |
| 7 | Iraq |
| 8 | Iran |
| 9 | Libya |
| 10 | United Arab Emirates |
| 11 | Canada |
| 12 | Australia |
| 13 | U.K. |
| 14 | USA |
| 15 | Korea (South) |
| 16 | Japan |
| 17 | Turkey |
| 18 | Germany |
| 19 | Sweden |
| 20 | Federation of Russia |
| 21 | Italy |
| 22 | Other European Country |
| 23 | Brunai |
| 24 | Mauritius |
| 25 | South Africa |
| 26 | Other (specify) |
| Sysmiss |