| 年度 | 实际值 |
|---|---|
| 1992 | 3028 |
| 1993 | |
| 1994 | |
| 1995 | 4232 |
| 1996 | |
| 1997 | |
| 1998 | |
| 1999 | 13781 |
| 2000 | 15487 |
| 2001 | 18022 |
| 2002 | 22291 |
| 2003 | 21403 |
| 2004 | 22363 |
| 2005 | 28356 |
| 2006 | 40953 |
| 2007 | 53674 |
| 2008 | 74941 |
| 2009 | 113682 |
| 2010 | 140478 |
| 2011 | 179920 |
| 2012 | 228625 |
| 2013 | 284063 |
| 2014 | 165102 |
| 2015 | 197789 |
| 2016 | 218613 |