| 年度 | 实际值 |
|---|---|
| 1993 | 920 |
| 1994 | 900 |
| 1995 | 1103 |
| 1996 | 1103 |
| 1997 | |
| 1998 | |
| 1999 | 3169 |
| 2000 | 4347 |
| 2001 | 4650 |
| 2002 | 3116 |
| 2003 | 3128 |
| 2004 | 7662 |
| 2005 | 4158 |
| 2006 | 4295 |
| 2007 | 6080 |
| 2008 | 4539 |
| 2009 | |
| 2010 | 4853 |
| 2011 | 9602 |
| 2012 | 9706 |
| 2013 | 5714 |
| 2014 | 10926 |
| 2015 | 6151 |
| 2016 | 6659 |
| 2017 | 7390 |
| 2018 | 7622 |