| 年度 | 实际值 |
|---|---|
| 1992 | 3868 |
| 1993 | 4433 |
| 1994 | 4794 |
| 1995 | 5440 |
| 1996 | 8194 |
| 1997 | 6914 |
| 1998 | 7472 |
| 1999 | 8283 |
| 2000 | |
| 2001 | |
| 2002 | |
| 2003 | 23790 |
| 2004 | 28918 |
| 2005 | 36648 |
| 2006 | 50415 |
| 2007 | 74440 |
| 2008 | 96498 |
| 2009 | |
| 2010 | 127873 |
| 2011 | 195931 |
| 2012 | 231851 |
| 2013 | 225132 |
| 2014 | 198921 |
| 2015 | 234068 |
| 2016 | 373112 |
| 2017 | 446697 |
| 2018 | 454734 |