Bueng Kan, the 77th province, was newly established on March 23, 2011, separated from Nong Khai province.
| Дата | Значение | Изменение, % |
|---|---|---|
| 2012 | 18,77 | -2,13% |
| 2011 | 19,18 | 0,76% |
| 2010 | 19,04 | -1,05% |
| 2009 | 19,24 | -1,80% |
| 2008 | 19,59 | -1,71% |
| 2007 | 19,93 | 4,60% |
| 2006 | 19,05 | -0,76% |
| 2005 | 19,20 | -1,13% |
| 2004 | 19,42 | -3,43% |
| 2003 | 20,11 |