| 年度 | 实际值 |
|---|---|
| 1992 | 7556 |
| 1993 | 4746 |
| 1994 | 7247 |
| 1995 | 10085 |
| 1996 | 15370 |
| 1997 | 10479 |
| 1998 | 12419 |
| 1999 | 20323 |
| 2000 | 18396 |
| 2001 | 22469 |
| 2002 | 28384 |
| 2003 | 30520 |
| 2004 | 48682 |
| 2005 | 60840 |
| 2006 | 12275.91 |
| 2007 | 20040 |
| 2008 | 20978.2 |
| 2009 | |
| 2010 | 140663.08 |
| 2011 | 145773 |
| 2012 | 149037 |
| 2013 | 71057 |
| 2014 | 71715 |