| 年度 | 实际值 |
|---|---|
| 1992 | 3372 |
| 1993 | |
| 1994 | |
| 1995 | 7679 |
| 1996 | |
| 1997 | |
| 1998 | |
| 1999 | 6308 |
| 2000 | 6605 |
| 2001 | 8149 |
| 2002 | 6893 |
| 2003 | 9077 |
| 2004 | 10519 |
| 2005 | 13868 |
| 2006 | 13039 |
| 2007 | 12635 |
| 2008 | 13962 |
| 2009 | 15713 |
| 2010 | 26432 |
| 2011 | 37015 |
| 2012 | 48708 |
| 2013 | 52476 |
| 2014 | 68287 |
| 2015 | 70489 |
| 2016 | 102231 |
| 2017 | 124026 |