| 年份 | 常住人口数(万人) |
|---|---|
| 2025 | — |
| 2024 | — |
| 2023 | — |
| 2022 | 14 |
| 2021 | 14.06 |
| 2020 | 14.4 |
| 2019 | 20 |
| 2018 | 20 |
| 2017 | 20.03 |
| 2016 | 20.02 |
| 2015 | 20.22 |
| 2014 | 20.18 |
| 2013 | 20.19 |
| 2012 | 20.19 |
| 2011 | — |
| 2010 | 20.17 |
| 2009 | 20.39 |
| 2008 | 20.33 |
| 2007 | 20.25 |
| 2006 | 20.23 |
| 2005 | — |
| 2004 | — |
| 2003 | — |
| 2002 | — |
| 2001 | — |
| 2000 | — |
| 1999 | — |