| 年度 | 实际值 |
|---|---|
| 1992 | 6452 |
| 1993 | |
| 1994 | |
| 1995 | 8073 |
| 1996 | |
| 1997 | |
| 1998 | |
| 1999 | 18895 |
| 2000 | 21527 |
| 2001 | 21934 |
| 2002 | 20867 |
| 2003 | 22103 |
| 2004 | 23389 |
| 2005 | 23266 |
| 2006 | 27085 |
| 2007 | 35200 |
| 2008 | 42168 |
| 2009 | 50199 |
| 2010 | 61366 |
| 2011 | 86108 |
| 2012 | 113100 |
| 2013 | 143400 |
| 2014 | 175000 |
| 2015 | 202600 |
| 2016 | 214691 |