| 年度 | 实际值 |
|---|---|
| 1993 | 936 |
| 1994 | 922 |
| 1995 | 1067 |
| 1996 | 796 |
| 1997 | 823 |
| 1998 | 1269 |
| 1999 | 907 |
| 2000 | 1029 |
| 2001 | 1083 |
| 2002 | 1044 |
| 2003 | 1107 |
| 2004 | 1087 |
| 2005 | 1113 |
| 2006 | 1179 |
| 2007 | 1151 |
| 2008 | 1568 |
| 2009 | |
| 2010 | 1737 |
| 2011 | 2039 |
| 2012 | 2201 |
| 2013 | 2264 |
| 2014 | 2414 |
| 2015 | 2555 |
| 2016 | 2715 |
| 2017 | 2861 |
| 2018 | 2998 |