| 年度 | 实际值 |
|---|---|
| 1992 | 1524 |
| 1993 | |
| 1994 | |
| 1995 | 27644 |
| 1996 | |
| 1997 | |
| 1998 | |
| 1999 | 26082 |
| 2000 | 19446 |
| 2001 | 23094 |
| 2002 | 30983 |
| 2003 | 51592 |
| 2004 | 47237 |
| 2005 | 41659 |
| 2006 | 33019 |
| 2007 | 44421 |
| 2008 | 64317 |
| 2009 | 93273 |
| 2010 | 134766 |
| 2011 | 182016 |
| 2012 | 241860 |
| 2013 | 321765 |
| 2014 | 365200 |
| 2015 | 493749 |
| 2016 | 490680 |
| 2017 | 524788 |