| 年度 | 实际值 |
|---|---|
| 1993 | 6497 |
| 1994 | 6639 |
| 1995 | 2822 |
| 1996 | 4260 |
| 1997 | 4299 |
| 1998 | 4299 |
| 1999 | 4319 |
| 2000 | |
| 2001 | |
| 2002 | |
| 2003 | 5712 |
| 2004 | 5907 |
| 2005 | 6244 |
| 2006 | 6706 |
| 2007 | 5656 |
| 2008 | 7693 |
| 2009 | |
| 2010 | 8134 |
| 2011 | 9188 |
| 2012 | 9293 |
| 2013 | 9611 |
| 2014 | 10163 |
| 2015 | 10586 |
| 2016 | 11177 |
| 2017 | 14380 |
| 2018 | 14704 |