| 年度 | 实际值 |
|---|---|
| 1992 | 1512 |
| 1993 | |
| 1994 | |
| 1995 | 4325 |
| 1996 | |
| 1997 | |
| 1998 | |
| 1999 | 11861 |
| 2000 | 13086 |
| 2001 | 16666 |
| 2002 | 20069 |
| 2003 | 22678 |
| 2004 | 29825 |
| 2005 | 33967 |
| 2006 | 37926 |
| 2007 | 49263 |
| 2008 | 84438 |
| 2009 | 95203 |
| 2010 | 94164 |
| 2011 | 119521 |
| 2012 | 157867 |
| 2013 | 174391 |
| 2014 | 197269 |
| 2015 | 258790 |
| 2016 | 286721 |