| 年度 | 实际值 |
|---|---|
| 1993 | 1492 |
| 1994 | 1480 |
| 1995 | 1619 |
| 1996 | 6883 |
| 1997 | 7648 |
| 1998 | 7794 |
| 1999 | 10742 |
| 2000 | 4123 |
| 2001 | 4902 |
| 2002 | 5920 |
| 2003 | 6087 |
| 2004 | 4972 |
| 2005 | 4694 |
| 2006 | 5203 |
| 2007 | 6144 |
| 2008 | 1047 |
| 2009 | |
| 2010 | 5231 |
| 2011 | 5484 |
| 2012 | 5901 |
| 2013 | 6367 |
| 2014 | 6191 |
| 2015 | 5757 |
| 2016 | 6660 |
| 2017 | 6990 |
| 2018 | 7194 |