| 年度 | 实际值 |
|---|---|
| 1995 | 2783 |
| 1996 | 3729 |
| 1997 | 10140 |
| 1998 | 13611 |
| 1999 | 20440 |
| 2000 | 19466 |
| 2001 | 41121 |
| 2002 | 37638 |
| 2003 | 42265 |
| 2004 | 32929 |
| 2005 | 38824 |
| 2006 | 95876 |
| 2007 | 93922 |
| 2008 | 78601 |
| 2009 | |
| 2010 | 54377 |
| 2011 | 149668 |
| 2012 | 135497 |
| 2013 | 123814 |
| 2014 | 51211 |
| 2015 | 27234 |
| 2016 | 63645 |
| 2017 | 47218 |
| 2018 | 35677 |