| 年度 | 实际值 |
|---|---|
| 1992 | 2253 |
| 1993 | |
| 1994 | |
| 1995 | 3841 |
| 1996 | |
| 1997 | |
| 1998 | |
| 1999 | 3658 |
| 2000 | 4374 |
| 2001 | 5051 |
| 2002 | 3509 |
| 2003 | 8379 |
| 2004 | 8502 |
| 2005 | 8551 |
| 2006 | 10698 |
| 2007 | 12139 |
| 2008 | 14748 |
| 2009 | 26291 |
| 2010 | 42024 |
| 2011 | 50005 |
| 2012 | 59698 |
| 2013 | 67011 |
| 2014 | 70005 |
| 2015 | 80992 |
| 2016 | 96840 |
| 2017 | 111245 |