| 年度 | 实际值 |
|---|---|
| 1993 | 84000 |
| 1994 | 83400 |
| 1995 | 83700 |
| 1996 | 90000 |
| 1997 | 89100 |
| 1998 | 86000 |
| 1999 | |
| 2000 | 76051 |
| 2001 | 75814 |
| 2002 | 64169 |
| 2003 | 59994 |
| 2004 | 59534 |
| 2005 | 58466 |
| 2006 | 54603 |
| 2007 | 51896 |
| 2008 | 49987 |
| 2009 | 44182 |
| 2010 | 40373 |
| 2011 | 39928 |
| 2012 | 38797 |
| 2013 | 33435 |
| 2014 | 33333 |
| 2015 | 32784 |
| 2016 | 31424 |
| 2017 | 29501 |