| 年份 | 常住人口数(万人) |
|---|---|
| 2025 | 31.31 |
| 2024 | — |
| 2023 | 31.37 |
| 2022 | 31.04 |
| 2021 | 30.73 |
| 2020 | 30.3 |
| 2019 | 30.45 |
| 2018 | 30.12 |
| 2017 | 29.47 |
| 2016 | 29.08 |
| 2015 | 28.84 |
| 2014 | 23.53 |
| 2013 | 28.4 |
| 2012 | 28.23 |
| 2011 | — |
| 2010 | 27.87 |
| 2009 | 26.27 |
| 2008 | 25.76 |
| 2007 | 25.28 |
| 2006 | 24.91 |
| 2005 | — |
| 2004 | — |
| 2003 | — |
| 2002 | — |
| 2001 | — |
| 2000 | — |
| 1999 | — |