| 年度 | 实际值 |
|---|---|
| 1992 | 60144 |
| 1993 | |
| 1994 | |
| 1995 | 64373 |
| 1996 | |
| 1997 | |
| 1998 | |
| 1999 | 67304 |
| 2000 | 68030 |
| 2001 | 67723 |
| 2002 | 65860 |
| 2003 | 51213 |
| 2004 | 51530 |
| 2005 | 53559 |
| 2006 | 51848 |
| 2007 | 52034 |
| 2008 | 53110 |
| 2009 | 55826 |
| 2010 | 55927 |
| 2011 | 58242 |
| 2012 | 59190 |
| 2013 | 60299 |
| 2014 | 37580 |
| 2015 | 37849 |
| 2016 | 38689 |