| 年度 | 实际值 |
|---|---|
| 1992 | 23665 |
| 1993 | |
| 1994 | |
| 1995 | 13260 |
| 1996 | |
| 1997 | |
| 1998 | |
| 1999 | 8854 |
| 2000 | 27331 |
| 2001 | 10456 |
| 2002 | 10456 |
| 2003 | 25076 |
| 2004 | 26271 |
| 2005 | 13426 |
| 2006 | 20264 |
| 2007 | 17013 |
| 2008 | 22536 |
| 2009 | 23635.9 |
| 2010 | 29430 |
| 2011 | 30795.7 |
| 2012 | 33120.8 |
| 2013 | 36147 |
| 2014 | 41437 |
| 2015 | 39623.3 |
| 2016 | 43116 |