| 年度 | 实际值 |
|---|---|
| 1992 | 8931 |
| 1993 | |
| 1994 | |
| 1995 | 36884 |
| 1996 | |
| 1997 | |
| 1998 | |
| 1999 | 72029 |
| 2000 | 78389 |
| 2001 | 83704 |
| 2002 | 92091 |
| 2003 | 104069 |
| 2004 | 116108 |
| 2005 | 130750 |
| 2006 | 149486 |
| 2007 | 161695 |
| 2008 | 216960 |
| 2009 | 257563 |
| 2010 | 291375 |
| 2011 | 342300 |
| 2012 | 399471 |
| 2013 | 439681 |
| 2014 | 481000 |
| 2015 | 502294 |