| 年度 | 实际值 |
|---|---|
| 1992 | 7571 |
| 1993 | |
| 1994 | |
| 1995 | 12657 |
| 1996 | |
| 1997 | |
| 1998 | |
| 1999 | 28987 |
| 2000 | 14945 |
| 2001 | 15932 |
| 2002 | 17724 |
| 2003 | 19419 |
| 2004 | 21694 |
| 2005 | 20844 |
| 2006 | 20844 |
| 2007 | 23391 |
| 2008 | 15947 |
| 2009 | 20062 |
| 2010 | 31927 |
| 2011 | 50413 |
| 2012 | 91423 |
| 2013 | 111710 |
| 2014 | 114874 |
| 2015 | 119338 |
| 2016 | 116829 |
| 2017 | 69953 |