| 年度 | 实际值 |
|---|---|
| 1993 | 1752 |
| 1994 | 1869 |
| 1995 | 1935 |
| 1996 | 1851 |
| 1997 | |
| 1998 | |
| 1999 | 1807 |
| 2000 | 5773 |
| 2001 | 5146 |
| 2002 | 4734 |
| 2003 | 5162 |
| 2004 | 4956 |
| 2005 | 4317 |
| 2006 | 4902 |
| 2007 | 5791 |
| 2008 | 5967 |
| 2009 | |
| 2010 | 14925 |
| 2011 | 6381 |
| 2012 | 7053 |
| 2013 | 7941 |
| 2014 | 8774 |
| 2015 | 9137 |
| 2016 | 8626 |
| 2017 | 9062 |
| 2018 | 9261 |