| 序号 | 时间 (年) |
数据 (万人) |
|---|---|---|
| 1 | 2019 | |
| 2 | 2018 | |
| 3 | 2017 | |
| 4 | 2016 | |
| 5 | 2015 | |
| 6 | 2014 | |
| 7 | 2013 | 23.92 |
| 8 | 2012 | 23.61 |
| 9 | 2011 | 23.34 |
| 10 | 2010 | 16.42 |
| 11 | 2009 | 16.69 |
| 12 | 2008 | 16.37 |
| 13 | 2007 | 17.03 |
| 14 | 2006 | 16.13 |
| 15 | 2005 | 17.91 |
| 16 | 2004 | 17.35 |
| 17 | 2003 | 18.45 |
| 18 | 2002 | 21.22 |
| 19 | 2001 | 21.03 |
| 20 | 2000 | 22.48 |
| 21 | 1999 | 24.29 |
| 22 | 1998 | 26.36 |
| 23 | 1997 | 29.39 |
| 24 | 1996 | 32.06 |
| 25 | 1995 | 34.12 |
| 26 | 1994 | 35.48 |
| 27 | 1993 | 35.67 |
| 28 | 1992 | 35.79 |
| 29 | 1991 | 31.93 |
| 30 | 1990 | 32.71 |
