| 年份 | 户籍人口(万人) |
|---|---|
| 2025 | — |
| 2024 | — |
| 2023 | — |
| 2022 | — |
| 2021 | 19.5 |
| 2020 | 19.711 |
| 2019 | 19.83 |
| 2018 | 19.9 |
| 2017 | 20.01 |
| 2016 | 20.04 |
| 2015 | 20.51 |
| 2014 | 17.05 |
| 2013 | 17.29 |
| 2012 | 17.43 |
| 2011 | 17.39 |
| 2010 | 21.13 |
| 2009 | 21.56 |
| 2008 | 17.32 |
| 2007 | 17.44 |
| 2006 | 17.74 |
| 2005 | 17.68 |
| 2004 | 17.56 |
| 2003 | 17.51 |
| 2002 | 17.49 |
| 2001 | 21.48 |
| 2000 | 21.52 |
| 1999 | 21.46 |