| 年度 | 实际值 |
|---|---|
| 1993 | 1013 |
| 1994 | 992 |
| 1995 | 873 |
| 1996 | 911 |
| 1997 | 969 |
| 1998 | 917 |
| 1999 | 1013 |
| 2000 | 1030 |
| 2001 | 1042 |
| 2002 | 1027 |
| 2003 | 1156 |
| 2004 | 1187 |
| 2005 | 1255 |
| 2006 | 759 |
| 2007 | 1250 |
| 2008 | 1160 |
| 2009 | |
| 2010 | 1256 |
| 2011 | 1370 |
| 2012 | 1398 |
| 2013 | 2514 |
| 2014 | 2678 |
| 2015 | 3809 |
| 2016 | 3694 |
| 2017 | 4014 |
| 2018 | 4568 |