| 年度 | 实际值 |
|---|---|
| 1992 | 13223 |
| 1993 | |
| 1994 | |
| 1995 | 25138 |
| 1996 | |
| 1997 | |
| 1998 | |
| 1999 | 26493 |
| 2000 | 21954 |
| 2001 | 23751 |
| 2002 | 25055 |
| 2003 | 28051 |
| 2004 | 26026 |
| 2005 | 15914 |
| 2006 | 17616 |
| 2007 | 21753 |
| 2008 | 28046 |
| 2009 | 34200 |
| 2010 | 50200 |
| 2011 | 50200 |
| 2012 | 129531 |
| 2013 | 164996 |
| 2014 | 195849 |
| 2015 | 213443 |
| 2016 | 243900 |
| 2017 | 348795 |