| 年度 | 实际值 |
|---|---|
| 1992 | 908 |
| 1993 | |
| 1994 | |
| 1995 | 1604 |
| 1996 | |
| 1997 | |
| 1998 | |
| 1999 | 1696 |
| 2000 | 1547 |
| 2001 | 3241 |
| 2002 | 5574 |
| 2003 | 7336 |
| 2004 | 8550 |
| 2005 | 7637 |
| 2006 | 9742 |
| 2007 | 7877 |
| 2008 | 9121 |
| 2009 | 12444 |
| 2010 | 33516 |
| 2011 | 73570 |
| 2012 | 104573 |
| 2013 | 173473 |
| 2014 | 214515 |
| 2015 | 277086 |
| 2016 | 316899 |
| 2017 | 351308 |