| 年度 | 实际值 |
|---|---|
| 1992 | 2838 |
| 1993 | |
| 1994 | |
| 1995 | 6263 |
| 1996 | |
| 1997 | |
| 1998 | |
| 1999 | 14275 |
| 2000 | 15591 |
| 2001 | 18599 |
| 2002 | 21089 |
| 2003 | 21313 |
| 2004 | 24864 |
| 2005 | 23808 |
| 2006 | 30675 |
| 2007 | 40813 |
| 2008 | 55918 |
| 2009 | 81353 |
| 2010 | 103478 |
| 2011 | 123482 |
| 2012 | 145494 |
| 2013 | 181959 |
| 2014 | 210537 |
| 2015 | 258790 |
| 2016 | 302287 |