| 年份 | 自然增长率 |
|---|---|
| 2025 | — |
| 2024 | — |
| 2023 | — |
| 2022 | — |
| 2021 | — |
| 2020 | — |
| 2019 | -3.2 |
| 2018 | -0.24 |
| 2017 | -0.76 |
| 2016 | -0.04 |
| 2015 | -0.23 |
| 2014 | -0.11 |
| 2013 | -0.08 |
| 2012 | -0.85 |
| 2011 | -0.1 |
| 2010 | -0.52 |
| 2009 | -1.9 |
| 2008 | 0.06 |
| 2007 | 0.02 |
| 2006 | 0.26 |
| 2005 | 0.19 |
| 2004 | 0.09 |
| 2003 | 0.05 |
| 2002 | -0.04 |
| 2001 | 0.1 |
| 2000 | 0.19 |
| 1999 | — |