| 年度 | 实际值 |
|---|---|
| 1992 | 3395 |
| 1993 | 3453 |
| 1994 | 3487 |
| 1995 | 3651 |
| 1996 | 3729 |
| 1997 | 3820 |
| 1998 | 3857 |
| 1999 | 3872 |
| 2000 | 4030 |
| 2001 | 4131 |
| 2002 | 4205 |
| 2003 | 4270.59 |
| 2004 | 4943.32 |
| 2005 | 2536.99 |
| 2006 | 2861.27 |
| 2007 | 2895.09 |
| 2008 | 2909.83 |
| 2009 | |
| 2010 | 2930.64 |
| 2011 | 2919.6 |
| 2012 | 2929.26 |
| 2013 | 2951.99 |
| 2014 | 2653.36 |
| 2015 | 2436.19 |