| 年份 | 常住人口数(万人) |
|---|---|
| 2025 | 18.77 |
| 2024 | — |
| 2023 | — |
| 2022 | — |
| 2021 | 18.85 |
| 2020 | 18.84 |
| 2019 | — |
| 2018 | 19.69 |
| 2017 | 19.53 |
| 2016 | 19.33 |
| 2015 | 19.17 |
| 2014 | 19.01 |
| 2013 | 18.95 |
| 2012 | 18.85 |
| 2011 | 18.7 |
| 2010 | 18.59 |
| 2009 | 19.67 |
| 2008 | 19.48 |
| 2007 | — |
| 2006 | — |
| 2005 | — |
| 2004 | — |
| 2003 | — |
| 2002 | — |
| 2001 | — |
| 2000 | — |
| 1999 | — |