| 年度 | 实际值 |
|---|---|
| 1992 | 144 |
| 1993 | 40 |
| 1994 | 40 |
| 1995 | 43 |
| 1996 | 559 |
| 1997 | 629 |
| 1998 | 678 |
| 1999 | 718 |
| 2000 | 803 |
| 2001 | 832 |
| 2002 | 685 |
| 2003 | 667.78 |
| 2004 | 637.56 |
| 2005 | 645.56 |
| 2006 | 665.11 |
| 2007 | 645.78 |
| 2008 | 660.89 |
| 2009 | |
| 2010 | 824.03 |
| 2011 | 853.05 |
| 2012 | 800.83 |
| 2013 | 835.64 |
| 2014 | 846.69 |
| 2015 | 856.35 |