| 年度 | 实际值 |
|---|---|
| 1993 | 1815 |
| 1994 | 1889 |
| 1995 | 2023 |
| 1996 | 1982 |
| 1997 | 4702 |
| 1998 | 3378 |
| 1999 | 3622 |
| 2000 | 5724 |
| 2001 | 6240 |
| 2002 | 3968 |
| 2003 | 4238 |
| 2004 | 4667 |
| 2005 | 4919 |
| 2006 | 4915 |
| 2007 | 5390 |
| 2008 | 5375 |
| 2009 | |
| 2010 | 6647 |
| 2011 | 7011 |
| 2012 | 7319 |
| 2013 | 7339 |
| 2014 | 5501 |
| 2015 | 5743 |
| 2016 | 8713 |
| 2017 | 9116 |
| 2018 | 9636 |