| 年度 | 实际值 |
|---|---|
| 1992 | 2823 |
| 1993 | |
| 1994 | |
| 1995 | 6000 |
| 1996 | |
| 1997 | |
| 1998 | |
| 1999 | 11523 |
| 2000 | 13995 |
| 2001 | 12919 |
| 2002 | 8255 |
| 2003 | 9307 |
| 2004 | 11161 |
| 2005 | 14092 |
| 2006 | 19793 |
| 2007 | 30845 |
| 2008 | 61252 |
| 2009 | 68303 |
| 2010 | 90903 |
| 2011 | 151484 |
| 2012 | 186369 |
| 2013 | 200818 |
| 2014 | 197483 |
| 2015 | 276915 |
| 2016 | 268947 |