| 年度 | 实际值 |
|---|---|
| 1992 | 5053 |
| 1993 | |
| 1994 | |
| 1995 | 14028 |
| 1996 | |
| 1997 | |
| 1998 | |
| 1999 | 23102 |
| 2000 | 26038 |
| 2001 | 22778 |
| 2002 | 12542 |
| 2003 | 10508 |
| 2004 | 11609 |
| 2005 | 16206 |
| 2006 | 23084 |
| 2007 | 32266 |
| 2008 | 41557 |
| 2009 | 51369 |
| 2010 | 66386 |
| 2011 | 96648 |
| 2012 | 140901 |
| 2013 | 172068 |
| 2014 | 294217 |
| 2015 | 219386 |
| 2016 | 194856 |