| 年度 | 实际值 |
|---|---|
| 1992 | 45682 |
| 1993 | |
| 1994 | |
| 1995 | 55079 |
| 1996 | |
| 1997 | |
| 1998 | |
| 1999 | 38296 |
| 2000 | 26184 |
| 2001 | 27165 |
| 2002 | 27165 |
| 2003 | 46143 |
| 2004 | 52267 |
| 2005 | 34086 |
| 2006 | 41620 |
| 2007 | 44001 |
| 2008 | 30547 |
| 2009 | 35256 |
| 2010 | 47892 |
| 2011 | 48179.5 |
| 2012 | 48689 |
| 2013 | 43047 |
| 2014 | 42683 |
| 2015 | 30170.5 |
| 2016 | 29627 |