| 年份 | 户籍人口(万人) |
|---|---|
| 2025 | — |
| 2024 | — |
| 2023 | — |
| 2022 | — |
| 2021 | 31.1 |
| 2020 | 31.09 |
| 2019 | 30.98 |
| 2018 | 31.094 |
| 2017 | 30.75 |
| 2016 | 30.62 |
| 2015 | 30.53 |
| 2014 | 30.39 |
| 2013 | 30.15 |
| 2012 | 29.9 |
| 2011 | 30.3 |
| 2010 | 30 |
| 2009 | 30 |
| 2008 | 29.1 |
| 2007 | 29 |
| 2006 | 28 |
| 2005 | 28 |
| 2004 | 28 |
| 2003 | 28 |
| 2002 | 28.1 |
| 2001 | 28 |
| 2000 | 28 |
| 1999 | 27.5 |