| 年度 | 实际值 |
|---|---|
| 1992 | 1757 |
| 1993 | |
| 1994 | |
| 1995 | 3706 |
| 1996 | |
| 1997 | |
| 1998 | |
| 1999 | 7060 |
| 2000 | 8639 |
| 2001 | 9475 |
| 2002 | 9862 |
| 2003 | 10387 |
| 2004 | 9538 |
| 2005 | 15575 |
| 2006 | 14791 |
| 2007 | 16026 |
| 2008 | 18222 |
| 2009 | 15300 |
| 2010 | 19331 |
| 2011 | 19331 |
| 2012 | 29600 |
| 2013 | 42468 |
| 2014 | 66876 |
| 2015 | 82709 |
| 2016 | 84636 |
| 2017 | 87667 |