| 年度 | 实际值 |
|---|---|
| 1995 | 10665 |
| 1996 | |
| 1997 | |
| 1998 | |
| 1999 | 17314 |
| 2000 | 16279 |
| 2001 | 10156 |
| 2002 | 14168 |
| 2003 | 15250 |
| 2004 | 18452 |
| 2005 | 21896 |
| 2006 | 24900 |
| 2007 | 33870 |
| 2008 | 40080 |
| 2009 | 44971 |
| 2010 | 53723 |
| 2011 | 64575 |
| 2012 | 72538 |
| 2013 | 77409 |
| 2014 | 58762 |
| 2015 | 59964 |
| 2016 | 41005 |
| 2017 | 29741 |
| 2018 | 29084 |