| 年度 | 实际值 |
|---|---|
| 1992 | 222 |
| 1993 | |
| 1994 | |
| 1995 | 23447 |
| 1996 | |
| 1997 | |
| 1998 | |
| 1999 | 38449 |
| 2000 | 38405 |
| 2001 | 46670 |
| 2002 | 40871 |
| 2003 | 43402 |
| 2004 | 43160 |
| 2005 | 40683 |
| 2006 | 28455 |
| 2007 | 35520 |
| 2008 | 51079 |
| 2009 | 65817 |
| 2010 | 86866 |
| 2011 | 89229 |
| 2012 | 118907 |
| 2013 | 140500 |
| 2014 | 167952 |
| 2015 | 184724 |
| 2016 | 231389 |
| 2017 | 261178 |