| 年份 | 户籍人口(万人) |
|---|---|
| 2025 | — |
| 2024 | — |
| 2023 | — |
| 2022 | — |
| 2021 | 21.5 |
| 2020 | 21.444 |
| 2019 | 21.355 |
| 2018 | 19.64 |
| 2017 | 19.49 |
| 2016 | 19.38 |
| 2015 | 19.27 |
| 2014 | 19.14 |
| 2013 | 19 |
| 2012 | 18.88 |
| 2011 | 18.68 |
| 2010 | 18.52 |
| 2009 | 19.5 |
| 2008 | 19.16 |
| 2007 | 19.15 |
| 2006 | 18.89 |
| 2005 | 18.5 |
| 2004 | 19.3 |
| 2003 | 19.1 |
| 2002 | 18.9 |
| 2001 | 18.8 |
| 2000 | 18.7 |
| 1999 | 18.14 |