| 年度 | 实际值 |
|---|---|
| 1993 | 3881 |
| 1994 | 3991 |
| 1995 | 3744 |
| 1996 | 3831 |
| 1997 | 3921 |
| 1998 | 3457 |
| 1999 | 3967 |
| 2000 | 3886 |
| 2001 | 3865 |
| 2002 | 4706 |
| 2003 | 4850 |
| 2004 | 4821 |
| 2005 | 4287 |
| 2006 | 3304 |
| 2007 | 5205 |
| 2008 | 4253 |
| 2009 | |
| 2010 | 4577 |
| 2011 | 5307 |
| 2012 | 5862 |
| 2013 | 6414 |
| 2014 | 6948 |
| 2015 | 9412 |
| 2016 | 9946 |
| 2017 | 10356 |
| 2018 | 11241 |