| 年度 | 实际值 |
|---|---|
| 1993 | 5267 |
| 1994 | 5386 |
| 1995 | 5503 |
| 1996 | 5276 |
| 1997 | 5573 |
| 1998 | 5493 |
| 1999 | 4217 |
| 2000 | 5509 |
| 2001 | 5701 |
| 2002 | 5622 |
| 2003 | 5120 |
| 2004 | 5214 |
| 2005 | 5825 |
| 2006 | 5954 |
| 2007 | 5819 |
| 2008 | 5080 |
| 2009 | |
| 2010 | 6368 |
| 2011 | 7203 |
| 2012 | 7643 |
| 2013 | 18909 |
| 2014 | 18114 |
| 2015 | 7822 |
| 2016 | 10287 |
| 2017 | 11280 |
| 2018 | 12354 |