Bueng Kan, the 77th province, was newly established on March 23, 2011, separated from Nong Khai province.
| Дата | Значение | Изменение, % |
|---|---|---|
| 2012 | 4,71 | 1,41% |
| 2011 | 4,64 | 0,15% |
| 2010 | 4,64 | 0,01% |
| 2009 | 4,64 | 0,20% |
| 2008 | 4,63 | -3,00% |
| 2007 | 4,77 | -0,35% |
| 2006 | 4,79 | 1,66% |
| 2005 | 4,71 | 8,70% |
| 2004 | 4,33 | 13,12% |
| 2003 | 3,83 |