| 年份 | 常住人口数(万人) |
|---|---|
| 2025 | — |
| 2024 | — |
| 2023 | — |
| 2022 | — |
| 2021 | — |
| 2020 | — |
| 2019 | 18.79 |
| 2018 | 18.66 |
| 2017 | 18.47 |
| 2016 | 18.38 |
| 2015 | 18.38 |
| 2014 | 18.33 |
| 2013 | 18.22 |
| 2012 | 18.15 |
| 2011 | 18.08 |
| 2010 | 18.02 |
| 2009 | 20.1 |
| 2008 | 19.84 |
| 2007 | 19.96 |
| 2006 | 19.43 |
| 2005 | 20.02 |
| 2004 | — |
| 2003 | — |
| 2002 | — |
| 2001 | — |
| 2000 | — |
| 1999 | — |