| 年度 | 实际值 |
|---|---|
| 1992 | 943 |
| 1993 | 962 |
| 1994 | 967 |
| 1995 | 462 |
| 1996 | 465 |
| 1997 | 468 |
| 1998 | 472 |
| 1999 | 475 |
| 2000 | 478 |
| 2001 | 481 |
| 2002 | 484 |
| 2003 | 523.21 |
| 2004 | 528.7 |
| 2005 | 530.59 |
| 2006 | 537.35 |
| 2007 | 545.78 |
| 2008 | 554.67 |
| 2009 | |
| 2010 | 564.04 |
| 2011 | 523.2 |
| 2012 | 528.33 |
| 2013 | 556.89 |
| 2014 | 539.37 |
| 2015 | 541.81 |