| 年份 | 户籍人口(万人) |
|---|---|
| 2025 | — |
| 2024 | — |
| 2023 | — |
| 2022 | — |
| 2021 | — |
| 2020 | 21.47 |
| 2019 | 21.91 |
| 2018 | 21.95 |
| 2017 | 22.03 |
| 2016 | 21.98 |
| 2015 | 21.85 |
| 2014 | 20.1 |
| 2013 | 20.1 |
| 2012 | 25 |
| 2011 | 25 |
| 2010 | 25.1 |
| 2009 | 25.5 |
| 2008 | 21.3 |
| 2007 | 21.2 |
| 2006 | 21 |
| 2005 | 20.7 |
| 2004 | 20.5 |
| 2003 | 20.2 |
| 2002 | 19.9 |
| 2001 | 19.6 |
| 2000 | 19.1 |