| 年度 | 实际值 |
|---|---|
| 1992 | 6172 |
| 1993 | |
| 1994 | |
| 1995 | 10402 |
| 1996 | 12224 |
| 1997 | |
| 1998 | |
| 1999 | 16528 |
| 2000 | 16689 |
| 2001 | 21164 |
| 2002 | 28180 |
| 2003 | 39777 |
| 2004 | 45586 |
| 2005 | 56421 |
| 2006 | 87199 |
| 2007 | 103245 |
| 2008 | 133296 |
| 2009 | 169625 |
| 2010 | 203831 |
| 2011 | 234298 |
| 2012 | 261304 |
| 2013 | 284969 |
| 2014 | 222681 |
| 2015 | 290083 |