| 年度 | 实际值 |
|---|---|
| 1992 | 2497 |
| 1993 | |
| 1994 | |
| 1995 | 3073 |
| 1996 | |
| 1997 | |
| 1998 | |
| 1999 | 11531 |
| 2000 | 10626 |
| 2001 | 12347 |
| 2002 | 14694 |
| 2003 | 7064 |
| 2004 | 20659 |
| 2005 | 22342 |
| 2006 | 28839 |
| 2007 | 41589 |
| 2008 | 60219 |
| 2009 | 70825 |
| 2010 | 96581 |
| 2011 | 125780 |
| 2012 | 146405 |
| 2013 | 164240 |
| 2014 | 159205 |
| 2015 | 181025 |
| 2016 | 204197 |