| 年份 | 户籍人口(万人) |
|---|---|
| 2022 | — |
| 2021 | 19.3 |
| 2020 | 19.48 |
| 2019 | 19.6 |
| 2018 | 19.84 |
| 2017 | 19.84 |
| 2016 | 19.99 |
| 2015 | 20.04 |
| 2014 | 20.46 |
| 2013 | 20.54 |
| 2012 | 20.5 |
| 2011 | 20.53 |
| 2010 | 20.52 |
| 2009 | 20.95 |
| 2008 | 20.9 |
| 2007 | 20.8 |
| 2006 | 20.8 |
| 2005 | 20.6 |
| 2004 | 20.6 |
| 2003 | 20.59 |
| 2002 | 20.6 |
| 2001 | 20.7 |
| 2000 | 20.59 |
| 1999 | 20.79 |