Bueng Kan, the 77th province, was newly established on March 23, 2011, separated from Nong Khai province.
| Дата | Значение | Изменение, % |
|---|---|---|
| 2012 | 5,67 | 0,19% |
| 2011 | 5,66 | 0,25% |
| 2010 | 5,65 | 0,53% |
| 2009 | 5,62 | 0,53% |
| 2008 | 5,59 | -3,86% |
| 2007 | 5,81 | -0,01% |
| 2006 | 5,81 | 0,50% |
| 2005 | 5,78 | 8,18% |
| 2004 | 5,35 | 11,70% |
| 2003 | 4,79 |