| 年度 | 实际值 |
|---|---|
| 1992 | 2467 |
| 1993 | |
| 1994 | |
| 1995 | 2248 |
| 1996 | |
| 1997 | |
| 1998 | |
| 1999 | 15052 |
| 2000 | 15657 |
| 2001 | 18676 |
| 2002 | 27750 |
| 2003 | 33828 |
| 2004 | 42083 |
| 2005 | 59530 |
| 2006 | 70164 |
| 2007 | 81321 |
| 2008 | 94123 |
| 2009 | 102872 |
| 2010 | 128635 |
| 2011 | 150150 |
| 2012 | 178770 |
| 2013 | 185663 |
| 2014 | 201008 |
| 2015 | 225886 |
| 2016 | 229368 |