| 年度 | 实际值 |
|---|---|
| 1992 | 3634 |
| 1993 | 3719 |
| 1994 | 3351 |
| 1995 | 3487 |
| 1996 | 3572 |
| 1997 | 3665 |
| 1998 | 3736 |
| 1999 | 3917 |
| 2000 | 3984 |
| 2001 | 3972 |
| 2002 | 4086 |
| 2003 | 2440.49 |
| 2004 | 2455.37 |
| 2005 | 2474.69 |
| 2006 | 2495.5 |
| 2007 | 2523.42 |
| 2008 | 2552.66 |
| 2009 | |
| 2010 | 2573.77 |
| 2011 | 2668.76 |
| 2012 | 2686.25 |
| 2013 | 2869.13 |
| 2014 | 2755.93 |
| 2015 | 2604.32 |