| 年份 | 自然增长率 |
|---|---|
| 2025 | — |
| 2024 | — |
| 2023 | — |
| 2022 | — |
| 2021 | — |
| 2020 | — |
| 2019 | 4.28 |
| 2018 | 0.47 |
| 2017 | 0.69 |
| 2016 | 0.7 |
| 2015 | 0.77 |
| 2014 | 0.77 |
| 2013 | 0.77 |
| 2012 | 0.78 |
| 2011 | 0.76 |
| 2010 | 0.8 |
| 2009 | 0.76 |
| 2008 | 0.76 |
| 2007 | 0.75 |
| 2006 | 0.71 |
| 2005 | 0.79 |
| 2004 | 0.87 |
| 2003 | 0.9 |
| 2002 | 0.95 |
| 2001 | 0.99 |
| 2000 | 0.67 |
| 1999 | — |