| 年度 | 实际值 |
|---|---|
| 1993 | 2979 |
| 1994 | 3055 |
| 1995 | 3091 |
| 1996 | 3139 |
| 1997 | 3074 |
| 1998 | 2410 |
| 1999 | 1915 |
| 2000 | 1918 |
| 2001 | 1995 |
| 2002 | 1991 |
| 2003 | 2100 |
| 2004 | 2274 |
| 2005 | 3121 |
| 2006 | 3131 |
| 2007 | 3635 |
| 2008 | 3666 |
| 2009 | |
| 2010 | 5261 |
| 2011 | 5774 |
| 2012 | 6208 |
| 2013 | 6798 |
| 2014 | 7128 |
| 2015 | 7381 |
| 2016 | 7604 |
| 2017 | 7989 |
| 2018 | 8444 |