单位:万人
                时间范围:2001 - 2021
                数据来源:住房和城乡建设部
            | 序号 | 时间(年) | 数据(万人) | 
|---|---|---|
| 1 | 2021 | |
| 2 | 2020 | |
| 3 | 2019 | |
| 4 | 2018 | |
| 5 | 2017 | |
| 6 | 2016 | 8.30 | 
| 7 | 2015 | 7.60 | 
| 8 | 2014 | 13.96 | 
| 9 | 2013 | 10.39 | 
| 10 | 2012 | 5.39 | 
| 11 | 2011 | 5.39 | 
| 12 | 2010 | 4.29 | 
| 13 | 2009 | 0.30 | 
| 14 | 2008 | 0.50 | 
| 15 | 2007 | 0.50 | 
| 16 | 2006 | 0.60 | 
| 17 | 2005 | 1.24 | 
| 18 | 2003 | 2.00 | 
| 19 | 2001 | 4.68 | 
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