| 年度 | 实际值 |
|---|---|
| 1992 | 2409 |
| 1993 | |
| 1994 | |
| 1995 | 3118 |
| 1996 | |
| 1997 | |
| 1998 | |
| 1999 | 10453 |
| 2000 | 10325 |
| 2001 | 7142 |
| 2002 | 9788 |
| 2003 | 9955 |
| 2004 | 13009 |
| 2005 | 14600 |
| 2006 | 19506 |
| 2007 | 33127 |
| 2008 | 45793 |
| 2009 | 64251 |
| 2010 | 85259 |
| 2011 | 106092 |
| 2012 | 144124 |
| 2013 | 166646 |
| 2014 | 180018 |
| 2015 | 237603 |
| 2016 | 222106 |