| 年份 | 总户数(万户) |
|---|---|
| 2025 | — |
| 2024 | — |
| 2023 | — |
| 2022 | — |
| 2021 | — |
| 2020 | 38.69 |
| 2019 | 33.21 |
| 2018 | 33.02 |
| 2017 | 32.66 |
| 2016 | -- |
| 2015 | -- |
| 2014 | -- |
| 2013 | -- |
| 2012 | -- |
| 2011 | -- |
| 2010 | -- |
| 2009 | 34.02 |
| 2008 | 33.79 |
| 2007 | 33.95 |
| 2006 | 34.12 |
| 2005 | 32.3 |
| 2004 | 29.47 |
| 2003 | 29.43 |
| 2002 | 27.76 |
| 2001 | 29.91 |
| 2000 | 27.96 |