| 2010 | 2008 | 2006 | 2004 | 2002 | 1998 |
---|
Vietnam | 9,399 | 9,189 | 9,198 | 9,198 | 30,000 | 6,000 |
Mekong | 1,905 | 1,863 | 1,863 | 1,863 | 6,298 | 1,112 |
Random sample | 1,000 |
- Source: Own summary from (GSO, General Statistics Office of Vietnam 1998, GSO, General Statistics Office of Vietnam 2002, GSO, General Statistics Office of Vietnam 2004, GSO, General Statistics Office of Vietnam 2006b, GSO, General Statistics Office of Vietnam 2008, GSO, General Statistics Office of Vietnam 2010).