| 年度 | 实际值 |
|---|---|
| 1992 | 2379 |
| 1993 | |
| 1994 | |
| 1995 | 3185 |
| 1996 | |
| 1997 | |
| 1998 | |
| 1999 | 10917 |
| 2000 | 12674 |
| 2001 | 15328 |
| 2002 | 15200 |
| 2003 | 18568 |
| 2004 | 12268 |
| 2005 | 16195 |
| 2006 | 18669 |
| 2007 | 16130 |
| 2008 | 19356 |
| 2009 | 22259 |
| 2010 | 37006 |
| 2011 | 51819 |
| 2012 | 67593 |
| 2013 | 92168 |
| 2014 | 106916 |
| 2015 | 116601 |
| 2016 | 117862 |