| 年度 | 实际值 |
|---|---|
| 1992 | 4721 |
| 1993 | |
| 1994 | |
| 1995 | 33912 |
| 1996 | |
| 1997 | |
| 1998 | |
| 1999 | 58593 |
| 2000 | 47996 |
| 2001 | 49599 |
| 2002 | 52436 |
| 2003 | 51834 |
| 2004 | 51956 |
| 2005 | 54102 |
| 2006 | |
| 2007 | 58137 |
| 2008 | 55507 |
| 2009 | 68073 |
| 2010 | 119324 |
| 2011 | 161000 |
| 2012 | 238619 |
| 2013 | 280941 |
| 2014 | 276898 |
| 2015 | 290758 |
| 2016 | 293561 |
| 2017 | 291947 |