| 年度 | 实际值 |
|---|---|
| 1992 | 505 |
| 1993 | |
| 1994 | |
| 1995 | 13903 |
| 1996 | |
| 1997 | |
| 1998 | |
| 1999 | 19996 |
| 2000 | 218546 |
| 2001 | 22485 |
| 2002 | 17022 |
| 2003 | 18277 |
| 2004 | 19387 |
| 2005 | 18325 |
| 2006 | 19190 |
| 2007 | 18929 |
| 2008 | 20179 |
| 2009 | 28794 |
| 2010 | 35605 |
| 2011 | 57100 |
| 2012 | 95575 |
| 2013 | 130169 |
| 2014 | 133206 |
| 2015 | 162514 |
| 2016 | 240736 |
| 2017 | 281167 |