| 年度 | 实际值 |
|---|---|
| 1992 | 24666 |
| 1993 | |
| 1994 | |
| 1995 | 32641 |
| 1996 | |
| 1997 | |
| 1998 | |
| 1999 | 42886 |
| 2000 | 40788 |
| 2001 | 31684 |
| 2002 | 34576 |
| 2003 | 36900 |
| 2004 | 27723 |
| 2005 | 27551 |
| 2006 | 27036 |
| 2007 | 32494 |
| 2008 | 72365 |
| 2009 | 75649 |
| 2010 | 104802 |
| 2011 | 116011 |
| 2012 | 134250 |
| 2013 | 137848 |
| 2014 | 162256 |
| 2015 | 212175 |
| 2016 | 209639 |
| 2017 | 168965 |