| 年度 | 实际值 |
|---|---|
| 1992 | 32455 |
| 1993 | |
| 1994 | |
| 1995 | 23842 |
| 1996 | |
| 1997 | |
| 1998 | |
| 1999 | 53160 |
| 2000 | 46901 |
| 2001 | 39133 |
| 2002 | 35520 |
| 2003 | 29808 |
| 2004 | 32137 |
| 2005 | 31408 |
| 2006 | 35508 |
| 2007 | 47299 |
| 2008 | 50579 |
| 2009 | 39539 |
| 2010 | 45099 |
| 2011 | 46333 |
| 2012 | 50586 |
| 2013 | 56000 |
| 2014 | 49330 |
| 2015 | 61315 |
| 2016 | 54480 |