| 年度 | 实际值 |
|---|---|
| 1992 | 8762 |
| 1993 | |
| 1994 | |
| 1995 | 20976 |
| 1996 | |
| 1997 | |
| 1998 | |
| 1999 | 20578 |
| 2000 | 20578 |
| 2001 | 31873 |
| 2002 | 23519 |
| 2003 | 25905 |
| 2004 | 26421 |
| 2005 | 27224 |
| 2006 | 21530 |
| 2007 | 23683 |
| 2008 | 35522 |
| 2009 | 30823 |
| 2010 | 40072 |
| 2011 | 70620 |
| 2012 | 97092 |
| 2013 | 122113 |
| 2014 | 163236 |
| 2015 | 204314 |
| 2016 | 231365 |
| 2017 | 345918 |