| 年度 | 实际值 |
|---|---|
| 1993 | 2567 |
| 1994 | 2842 |
| 1995 | 2773 |
| 1996 | 2812 |
| 1997 | 2941 |
| 1998 | 2472 |
| 1999 | 3234 |
| 2000 | 3673 |
| 2001 | 2086 |
| 2002 | 3485 |
| 2003 | 3385 |
| 2004 | 3879 |
| 2005 | 3940 |
| 2006 | 4261 |
| 2007 | 3595 |
| 2008 | 3625 |
| 2009 | |
| 2010 | 3367 |
| 2011 | 3580 |
| 2012 | 5719 |
| 2013 | 5551 |
| 2014 | 7316 |
| 2015 | 6951 |
| 2016 | 6806 |
| 2017 | 6974 |
| 2018 | 7115 |