| 年份 | 户籍人口(万人) |
| 2024 | |
| 2023 | |
| 2022 | |
| 2021 | |
| 2020 | |
| 2019 | |
| 2018 | 28.40 |
| 2017 | 28.30 |
| 2016 | 28.28 |
| 2015 | 28.10 |
| 2014 | 27.90 |
| 2013 | 27.70 |
| 2012 | 27.50 |
| 2011 | 27.40 |
| 2010 | 27.22 |
| 2009 | 29.50 |
| 2008 | 29.33 |
| 2007 | 29.12 |
| 2006 | 29.05 |
| 2005 | 28.20 |
| 2004 | 30.30 |
| 2003 | 30.40 |
| 2002 | 30.20 |
| 2001 | 29.90 |
| 2000 | 29.70 |
| 1999 |