Bueng Kan, the 77th province, was newly established on March 23, 2011, separated from Nong Khai province.
| Дата | Значение | Изменение, % |
|---|---|---|
| 2012 | 6,66 | -0,66% |
| 2011 | 6,70 | 0,34% |
| 2010 | 6,68 | 0,92% |
| 2009 | 6,62 | 0,78% |
| 2008 | 6,57 | -4,46% |
| 2007 | 6,88 | 0,24% |
| 2006 | 6,86 | -0,29% |
| 2005 | 6,88 | 7,84% |
| 2004 | 6,38 | 10,82% |
| 2003 | 5,76 |