| 年度 | 实际值 |
|---|---|
| 1992 | 2645 |
| 1993 | |
| 1994 | |
| 1995 | 4736 |
| 1996 | |
| 1997 | |
| 1998 | |
| 1999 | 11600 |
| 2000 | 13115 |
| 2001 | 15042 |
| 2002 | 14783 |
| 2003 | 16547 |
| 2004 | 23963 |
| 2005 | 34508 |
| 2006 | 48008 |
| 2007 | 60133 |
| 2008 | 66180 |
| 2009 | 76112 |
| 2010 | 69444 |
| 2011 | 96872 |
| 2012 | 126525 |
| 2013 | 160850 |
| 2014 | 174129 |
| 2015 | 197752 |
| 2016 | 250871 |