| 年份 | 行政区域面积(平方公里 |
| 2024 | |
| 2023 | |
| 2022 | |
| 2020 | |
| 2020 | |
| 2019 | |
| 2019 | |
| 2018 | |
| 2018 | |
| 2017 | |
| 2017 | |
| 2016 | |
| 2016 | 480 |
| 2015 | 32 |
| 2015 | 480 |
| 2014 | 32 |
| 2014 | 480 |
| 2013 | 32 |
| 2013 | 480 |
| 2012 | 32 |
| 2012 | 32 |
| 2011 | 32 |
| 2011 | 32 |
| 2010 | 29 |
| 2010 | 465 |
| 2009 | 29 |
| 2009 | 465 |
| 2008 | 29 |
| 2008 | 465 |
| 2007 | 29 |
| 2007 | 465 |
| 2006 | |
| 2006 | 465 |
| 2005 | |
| 2005 | 465 |
| 2004 | |
| 2004 | 465 |
| 2003 | |
| 2003 | 465 |
| 2002 | |
| 2002 | 465 |
| 2001 | |
| 2001 | 465 |
| 2000 | |
| 2000 | 465 |
| 1999 |
