| 年度 | 实际值 |
|---|---|
| 1992 | 2402 |
| 1993 | 2519 |
| 1994 | 2129 |
| 1995 | 2231 |
| 1996 | 2291 |
| 1997 | 2332 |
| 1998 | 2377 |
| 1999 | 2401 |
| 2000 | 2419 |
| 2001 | 2436 |
| 2002 | 723 |
| 2003 | 728.55 |
| 2004 | 732.01 |
| 2005 | 736.14 |
| 2006 | 740.92 |
| 2007 | 745.76 |
| 2008 | 751.27 |
| 2009 | |
| 2010 | 770.34 |
| 2011 | 778.22 |
| 2012 | 764.47 |
| 2013 | 767.49 |
| 2014 | 783.31 |
| 2015 | 783.87 |