单位:万人
                时间范围:1997 - 2020
                数据来源:国家统计局
            | 序号 | 时间(年) | 数据(万人) | 同比(%) | 
|---|---|---|---|
| 1 | 2020 | ||
| 2 | 2019 | ||
| 3 | 2018 | ||
| 4 | 2017 | ||
| 5 | 2016 | ||
| 6 | 2015 | 1.18 | -17.48 | 
| 7 | 2014 | 1.43 | -36.16 | 
| 8 | 2013 | 2.24 | -16.73 | 
| 9 | 2012 | 2.69 | -16.98 | 
| 10 | 2011 | 3.24 | -42.65 | 
| 11 | 2010 | 5.65 | 36.8 | 
| 12 | 2009 | 4.13 | 2.23 | 
| 13 | 2008 | 4.04 | -1.46 | 
| 14 | 2007 | 4.10 | -6.39 | 
| 15 | 2006 | 4.38 | 3.3 | 
| 16 | 2005 | 4.24 | 26.57 | 
| 17 | 2004 | 3.35 | 13.18 | 
| 18 | 2003 | 2.96 | 14.73 | 
| 19 | 2002 | 2.58 | 58.28 | 
| 20 | 2001 | 1.63 | -14.21 | 
| 21 | 2000 | 1.90 | 2.7 | 
| 22 | 1999 | 1.85 | -2.63 | 
| 23 | 1998 | 1.90 | -61.3 | 
| 24 | 1997 | 4.91 | 0 | 
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