| 年份 | 户籍人口(万人) |
|---|---|
| 2025 | — |
| 2024 | — |
| 2023 | — |
| 2022 | — |
| 2021 | 20.8 |
| 2020 | 20.828 |
| 2019 | 20.859 |
| 2018 | 20.89 |
| 2017 | 20.84 |
| 2016 | 20.69 |
| 2015 | 20.57 |
| 2014 | 20.45 |
| 2013 | 20.33 |
| 2012 | 20.2 |
| 2011 | 20.1 |
| 2010 | 20.01 |
| 2009 | 21 |
| 2008 | 20.77 |
| 2007 | 20.74 |
| 2006 | 20 |
| 2005 | 20.6 |
| 2004 | 20.1 |
| 2003 | 19.8 |
| 2002 | 19.7 |
| 2001 | 19.7 |
| 2000 | 19.7 |
| 1999 | 19.79 |