| 年份 | 自然增长率 |
| 2024 | |
| 2023 | |
| 2022 | |
| 2021 | |
| 2020 | |
| 2020 | |
| 2019 | 0.63 |
| 2019 | 0.63 |
| 2018 | 0.08 |
| 2018 | 0.08 |
| 2017 | -0.68 |
| 2017 | -0.68 |
| 2016 | |
| 2016 | |
| 2015 | -0.35 |
| 2015 | -0.35 |
| 2014 | -0.43 |
| 2014 | -0.43 |
| 2013 | -0.05 |
| 2013 | -0.05 |
| 2012 | 0.02 |
| 2012 | 0.02 |
| 2011 | 0.09 |
| 2011 | 0.09 |
| 2010 | -0.20 |
| 2010 | -0.20 |
| 2009 | 0.31 |
| 2009 | 0.31 |
| 2008 | 0.22 |
| 2008 | 0.22 |
| 2007 | 0.21 |
| 2007 | 0.21 |
| 2006 | 0.28 |
| 2006 | 0.28 |
| 2005 | 0.21 |
| 2005 | 0.21 |
| 2004 | -0.01 |
| 2004 | -0.01 |
| 2003 | 0.34 |
| 2003 | 0.34 |
| 2002 | 0.52 |
| 2002 | 0.52 |
| 2001 | |
| 2001 | |
| 2000 | |
| 2000 | |
| 1999 |
