| 年份 | 常住人口数(万人) |
|---|---|
| 2025 | — |
| 2024 | — |
| 2023 | — |
| 2022 | — |
| 2021 | — |
| 2020 | — |
| 2019 | 29.56 |
| 2018 | 29.19 |
| 2017 | 28.34 |
| 2016 | 28.18 |
| 2015 | 28.18 |
| 2014 | 28.1 |
| 2013 | 27.91 |
| 2012 | 27.78 |
| 2011 | 27.64 |
| 2010 | 27.45 |
| 2009 | 22.32 |
| 2008 | 22.19 |
| 2007 | 22.18 |
| 2006 | 22.11 |
| 2005 | 22 |
| 2004 | — |
| 2003 | — |
| 2002 | — |
| 2001 | — |
| 2000 | — |
| 1999 | — |