| 年度 | 实际值 |
|---|---|
| 1992 | 1744 |
| 1993 | 1759 |
| 1994 | 1761 |
| 1995 | 1778 |
| 1996 | 1779 |
| 1997 | 1788 |
| 1998 | 1804 |
| 1999 | 1802 |
| 2000 | 1832 |
| 2001 | 1852 |
| 2002 | 1878 |
| 2003 | 1898.73 |
| 2004 | 923.55 |
| 2005 | 933.24 |
| 2006 | 1105.96 |
| 2007 | 671.01 |
| 2008 | 670.52 |
| 2009 | |
| 2010 | 669.91 |
| 2011 | 665.4 |
| 2012 | 665.2 |
| 2013 | 668.4 |
| 2014 | 668.59 |
| 2015 | 538.34 |