| 年度 | 实际值 |
|---|---|
| 1992 | 4347 |
| 1993 | |
| 1994 | |
| 1995 | 3128 |
| 1996 | |
| 1997 | |
| 1998 | |
| 1999 | 13051 |
| 2000 | 18067 |
| 2001 | 18660 |
| 2002 | 21511 |
| 2003 | 25581 |
| 2004 | 24546 |
| 2005 | 32292 |
| 2006 | 44650 |
| 2007 | 63181 |
| 2008 | 78393 |
| 2009 | 88069 |
| 2010 | 122295 |
| 2011 | 145658 |
| 2012 | 178335 |
| 2013 | 224777 |
| 2014 | 241746 |
| 2015 | 277216 |
| 2016 | 303846 |