| 年度 | 实际值 |
|---|---|
| 1993 | 1268 |
| 1994 | 1307 |
| 1995 | 3040 |
| 1996 | 3135 |
| 1997 | 3201 |
| 1998 | 3283 |
| 1999 | 3460 |
| 2000 | |
| 2001 | |
| 2002 | |
| 2003 | 4551 |
| 2004 | 4877 |
| 2005 | 5410 |
| 2006 | 6613 |
| 2007 | 7039 |
| 2008 | 6722 |
| 2009 | |
| 2010 | 8227 |
| 2011 | 9275 |
| 2012 | 8836 |
| 2013 | 9246 |
| 2014 | 11430 |
| 2015 | 12115 |
| 2016 | 12423 |
| 2017 | 12839 |
| 2018 | 14021 |