| 年度 | 实际值 |
|---|---|
| 1992 | 5176 |
| 1993 | 5220 |
| 1994 | 1573 |
| 1995 | 1606 |
| 1996 | 1614 |
| 1997 | 1681 |
| 1998 | 1793 |
| 1999 | 1621 |
| 2000 | 1500 |
| 2001 | 588 |
| 2002 | 855 |
| 2003 | 864.48 |
| 2004 | 875.4 |
| 2005 | 911.22 |
| 2006 | 924.67 |
| 2007 | 937.46 |
| 2008 | 950.81 |
| 2009 | |
| 2010 | 963.84 |
| 2011 | 990.51 |
| 2012 | 1006.4 |
| 2013 | 1021.74 |
| 2014 | 1035.44 |
| 2015 | 819.57 |