| 年度 | 实际值 |
|---|---|
| 1992 | 9997 |
| 1993 | 4609 |
| 1994 | 4621 |
| 1995 | 4651 |
| 1996 | 4672 |
| 1997 | 3854 |
| 1998 | 3295 |
| 1999 | 2873 |
| 2000 | 2897 |
| 2001 | 2382 |
| 2002 | 2397 |
| 2003 | 2412.21 |
| 2004 | 2432.78 |
| 2005 | 1971.79 |
| 2006 | 2518.13 |
| 2007 | 2539.57 |
| 2008 | 2563.92 |
| 2009 | |
| 2010 | 2583.28 |
| 2011 | 2619.96 |
| 2012 | 2635.09 |
| 2013 | 2646.23 |
| 2014 | 2659.38 |