| 年度 | 实际值 |
|---|---|
| 1992 | 1724 |
| 1993 | |
| 1994 | |
| 1995 | 3637 |
| 1996 | |
| 1997 | |
| 1998 | |
| 1999 | 13146 |
| 2000 | 12910 |
| 2001 | 16449 |
| 2002 | 20395 |
| 2003 | 21525 |
| 2004 | 27145 |
| 2005 | 32532 |
| 2006 | 46269 |
| 2007 | 68463 |
| 2008 | 79768 |
| 2009 | 90088 |
| 2010 | 122000 |
| 2011 | 150706 |
| 2012 | 184902 |
| 2013 | 213836 |
| 2014 | 218908 |
| 2015 | 252616 |
| 2016 | 257855 |