| 年度 | 实际值 |
|---|---|
| 1992 | 3945 |
| 1993 | |
| 1994 | |
| 1995 | 2498 |
| 1996 | 8450 |
| 1997 | |
| 1998 | |
| 1999 | 14314 |
| 2000 | 15760 |
| 2001 | 20529 |
| 2002 | 25487 |
| 2003 | 28118 |
| 2004 | 30905 |
| 2005 | 34276 |
| 2006 | 44884 |
| 2007 | 61736 |
| 2008 | 99332 |
| 2009 | 103613 |
| 2010 | 152001 |
| 2011 | 162465 |
| 2012 | 201395 |
| 2013 | 227254 |
| 2014 | 245183 |
| 2015 | 252061 |