| 年度 | 实际值 |
|---|---|
| 1992 | 8540 |
| 1993 | 7152 |
| 1994 | 6647 |
| 1995 | 6255 |
| 1996 | |
| 1997 | |
| 1998 | |
| 1999 | 11639 |
| 2000 | 10046 |
| 2001 | 12594 |
| 2002 | 14824 |
| 2003 | 17829 |
| 2004 | 23131 |
| 2005 | 29043 |
| 2006 | 35529 |
| 2007 | 47709 |
| 2008 | 61637 |
| 2009 | 84566 |
| 2010 | 94701 |
| 2011 | 125294 |
| 2012 | 150165 |
| 2013 | 168165 |
| 2014 | 208669 |
| 2015 | 249470 |