| 年度 | 实际值 |
|---|---|
| 1993 | 2198 |
| 1994 | 1886 |
| 1995 | 1886 |
| 1996 | 1886 |
| 1997 | |
| 1998 | |
| 1999 | |
| 2000 | 7749 |
| 2001 | 6342 |
| 2002 | 6441 |
| 2003 | 6495 |
| 2004 | 5879 |
| 2005 | 5627 |
| 2006 | 6973 |
| 2007 | 7761 |
| 2008 | 8351 |
| 2009 | |
| 2010 | 6441 |
| 2011 | 9326 |
| 2012 | 9449 |
| 2013 | 9493 |
| 2014 | 9831 |
| 2015 | 10512 |
| 2016 | 10587 |
| 2017 | 11043 |
| 2018 | 11602 |