| 年度 | 实际值 |
|---|---|
| 1993 | 694 |
| 1994 | 772 |
| 1995 | 780 |
| 1996 | 763 |
| 1997 | 856 |
| 1998 | 828 |
| 1999 | 970 |
| 2000 | 846 |
| 2001 | 932 |
| 2002 | 910 |
| 2003 | 1033 |
| 2004 | 1090 |
| 2005 | 1466 |
| 2006 | 1642 |
| 2007 | 1582 |
| 2008 | 1768 |
| 2009 | |
| 2010 | 1843 |
| 2011 | 2048 |
| 2012 | 2855 |
| 2013 | 3003 |
| 2014 | 3101 |
| 2015 | 4314 |
| 2016 | 4314 |
| 2017 | 3585 |
| 2018 | 3754 |