注：数据为人口抽样调查推算
| 序号 |
时间(年) |
数据(单位：万人) |
| 1 |
2025 |
|
| 2 |
2024 |
|
| 3 |
2023 |
|
| 4 |
2022 |
|
| 5 |
2021 |
|
| 6 |
2020 |
|
| 7 |
2019 |
28.10 |
| 8 |
2018 |
27.90 |
| 9 |
2017 |
28.40 |
| 10 |
2016 |
28.90 |
| 11 |
2015 |
27.10 |
| 12 |
2014 |
28.50 |
| 13 |
2013 |
26.70 |
| 14 |
2012 |
27.00 |
| 15 |
2011 |
25.00 |
| 16 |
2010 |
29.12 |
| 17 |
2009 |
26.23 |
| 18 |
2008 |
27.22 |
| 19 |
2007 |
29.52 |
| 20 |
2006 |
27.17 |
| 21 |
2005 |
29.58 |
| 22 |
2004 |
27.43 |
| 23 |
2003 |
29.02 |
| 24 |
2002 |
30.98 |
| 25 |
2001 |
32.42 |
| 26 |
2000 |
35.34 |
| 27 |
1999 |
43.22 |
| 28 |
1998 |
47.24 |
| 29 |
1997 |
48.62 |
| 30 |
1996 |
49.86 |
| 31 |
1995 |
49.65 |
| 32 |
1994 |
49.71 |
| 33 |
1993 |
50.08 |
| 34 |
1992 |
50.32 |
| 35 |
1991 |
48.14 |
