| 年度 | 实际值 |
|---|---|
| 1993 | 75000 |
| 1994 | 73700 |
| 1995 | 68300 |
| 1996 | 70000 |
| 1997 | 46300 |
| 1998 | 73900 |
| 1999 | 420000 |
| 2000 | 420200 |
| 2001 | 429400 |
| 2002 | 431200 |
| 2003 | 410000 |
| 2004 | 38 |
| 2005 | 352400 |
| 2006 | 352500 |
| 2007 | 350400 |
| 2008 | 327100 |
| 2009 | |
| 2010 | 280400 |
| 2011 | 46589 |
| 2012 | 40725 |
| 2013 | 41531 |
| 2014 | 41707 |
| 2015 | 42034 |
| 2016 | 41585 |
| 2017 | 41427 |