| 年度 | 实际值 |
|---|---|
| 1993 | 42000 |
| 1994 | 41900 |
| 1995 | 42300 |
| 1996 | 40000 |
| 1997 | 37000 |
| 1998 | 44900 |
| 1999 | |
| 2000 | 271039 |
| 2001 | 283723 |
| 2002 | 290340 |
| 2003 | 293436 |
| 2004 | 289316 |
| 2005 | 278051 |
| 2006 | 268058 |
| 2007 | 251700 |
| 2008 | 251700 |
| 2009 | |
| 2010 | 192200 |
| 2011 | 183000 |
| 2012 | 173133 |
| 2013 | 160952 |
| 2014 | 152137 |
| 2015 | 149448 |