| 年度 | 实际值 |
|---|---|
| 1995 | 2138 |
| 1996 | 7115 |
| 1997 | 11737 |
| 1998 | 11473 |
| 1999 | 10355 |
| 2000 | 13736 |
| 2001 | 22806 |
| 2002 | 36179 |
| 2003 | 45513 |
| 2004 | 41774 |
| 2005 | |
| 2006 | 51796 |
| 2007 | 73956 |
| 2008 | 86458 |
| 2009 | |
| 2010 | 67076 |
| 2011 | 90764 |
| 2012 | 110413 |
| 2013 | 109981 |
| 2014 | 57230 |
| 2015 | 44898 |
| 2016 | 27693 |
| 2017 | 48446 |
| 2018 | 18914 |