| 年份 | 常住人口数(万人) |
|---|---|
| 2025 | 17.99 |
| 2024 | — |
| 2023 | — |
| 2022 | — |
| 2021 | — |
| 2020 | — |
| 2019 | 20.15 |
| 2018 | 20.11 |
| 2017 | 20.24 |
| 2016 | 20.13 |
| 2015 | 20.13 |
| 2014 | 20.26 |
| 2013 | 20.14 |
| 2012 | 20.1 |
| 2011 | 20.07 |
| 2010 | 20.03 |
| 2009 | 21.61 |
| 2008 | 21.75 |
| 2007 | 21.73 |
| 2006 | 21.75 |
| 2005 | 21.74 |
| 2004 | — |
| 2003 | — |
| 2002 | — |
| 2001 | — |
| 2000 | — |
| 1999 | — |