| 年度 | 实际值 |
|---|---|
| 1993 | 14325 |
| 1994 | 14317 |
| 1995 | 14317 |
| 1996 | 14317 |
| 1997 | 14317 |
| 1998 | 14317 |
| 1999 | 14317 |
| 2000 | 14317 |
| 2001 | 14317 |
| 2002 | 14314 |
| 2003 | 14317 |
| 2004 | 14317 |
| 2005 | 14317 |
| 2006 | 14359 |
| 2007 | 14359 |
| 2008 | 14359 |
| 2009 | |
| 2010 | 14359 |
| 2011 | 14403 |
| 2012 | 14313 |
| 2013 | 14277 |
| 2014 | 14277 |
| 2015 | 14277 |
| 2016 | 14277 |
| 2017 | 14277 |
| 2018 | 14277 |