| 年度 | 实际值 |
|---|---|
| 1992 | 6420 |
| 1993 | |
| 1994 | |
| 1995 | 11051 |
| 1996 | |
| 1997 | |
| 1998 | |
| 1999 | 19916 |
| 2000 | 16628 |
| 2001 | 17463 |
| 2002 | 16467 |
| 2003 | 15832 |
| 2004 | 14799 |
| 2005 | 18492 |
| 2006 | 22006 |
| 2007 | 28048 |
| 2008 | 37109 |
| 2009 | 56666 |
| 2010 | 71778 |
| 2011 | 92532 |
| 2012 | 112861 |
| 2013 | 138260 |
| 2014 | 262149 |
| 2015 | 183701 |
| 2016 | 184580 |