| 年度 | 实际值 |
|---|---|
| 1992 | 18911 |
| 1993 | 27003 |
| 1994 | 7829 |
| 1995 | 8779 |
| 1996 | 10304 |
| 1997 | 13037 |
| 1998 | 15656 |
| 1999 | 15063 |
| 2000 | |
| 2001 | |
| 2002 | |
| 2003 | 33298 |
| 2004 | 36290 |
| 2005 | 56608 |
| 2006 | 70353 |
| 2007 | 77755 |
| 2008 | 93314 |
| 2009 | |
| 2010 | 154864 |
| 2011 | 211842 |
| 2012 | 271448 |
| 2013 | 204899 |
| 2014 | 168062 |
| 2015 | 155867 |
| 2016 | 188701 |
| 2017 | 231331 |
| 2018 | 252400 |