| 年度 | 实际值 |
|---|---|
| 1992 | 36215 |
| 1993 | |
| 1994 | |
| 1995 | 34467 |
| 1996 | |
| 1997 | |
| 1998 | |
| 1999 | 4076 |
| 2000 | 23083 |
| 2001 | 5436 |
| 2002 | 5436 |
| 2003 | 9470 |
| 2004 | 23493 |
| 2005 | 14386 |
| 2006 | 22470 |
| 2007 | 25460 |
| 2008 | 26143 |
| 2009 | 35694 |
| 2010 | 33598 |
| 2011 | 34299.8 |
| 2012 | 36215.3 |
| 2013 | 36822 |
| 2014 | 47729 |
| 2015 | 13462.7 |
| 2016 | 46837 |