| 年度 | 实际值 |
|---|---|
| 1992 | 3949 |
| 1993 | |
| 1994 | |
| 1995 | 28400 |
| 1996 | |
| 1997 | |
| 1998 | |
| 1999 | 28096 |
| 2000 | 25017 |
| 2001 | 28644 |
| 2002 | 39049 |
| 2003 | 43949 |
| 2004 | 44807 |
| 2005 | 48834 |
| 2006 | 44171 |
| 2007 | 41119 |
| 2008 | 20950 |
| 2009 | 52242 |
| 2010 | 88234 |
| 2011 | 122739 |
| 2012 | 142871 |
| 2013 | 227229 |
| 2014 | 268011 |
| 2015 | 335888 |
| 2016 | 292533 |
| 2017 | 322509 |